[ (1)                - check file types and compare values
__audit_reusename (9) - fill out filename with info from existing entry
__break_lease (9)    - revoke all outstanding leases on file
__fbufsize (3)       - interfaces to stdio FILE structure
__flbf (3)           - interfaces to stdio FILE structure
__fpending (3)       - interfaces to stdio FILE structure
__freadable (3)      - interfaces to stdio FILE structure
__freading (3)       - interfaces to stdio FILE structure
__fsetlocking (3)    - interfaces to stdio FILE structure
__fwritable (3)      - interfaces to stdio FILE structure
__fwriting (3)       - interfaces to stdio FILE structure
__generic_file_write_iter (9) - write data to a file
_flushlbf (3)        - interfaces to stdio FILE structure
_llseek (2)          - reposition read/write file offset
a2disconf (8)        - enable or disable an apache2 configuration file
a2enconf (8)         - enable or disable an apache2 configuration file
access (2)           - check user's permissions for a file
access.conf (5)      - the login access control table file
acct (5)             - process accounting file
addmntent (3)        - get filesystem descriptor file entry
addr2line (1)        - convert addresses into file names and line numbers.
adduser.conf (5)     - configuration file for adduser(8) and addgroup(8) .
aio_fsync (3)        - asynchronous file synchronization
Algorithm::Diff (3pm) - Compute `intelligent' differences between two files /...
Algorithm::DiffOld (3pm) - Compute `intelligent' differences between two file...
AnyDBM_File (3perl)  - provide framework for multiple DBMs
Apache2::PerlSections (3pm) - write Apache configuration files in Perl
APR::Finfo (3pm)     - Perl API for APR fileinfo structure
apt-ftparchive (1)   - Utility to generate index files
apt-sortpkgs (1)     - Utility to sort package index files
apt.conf (5)         - Configuration file for APT
apt_preferences (5)  - Preference control file for APT
ar86 (1)             - Create, modify, and extract from archive file
Archive::Tar::File (3perl) - a subclass for in-memory extracted file from Arc...
Archive::Zip (3pm)   - Provide an interface to ZIP archive files.
Archive::Zip::MemberRead (3pm) - A wrapper that lets you read Zip archive mem...
arm_fadvise (2)      - predeclare an access pattern for file data
arm_fadvise64_64 (2) - predeclare an access pattern for file data
arm_sync_file_range (2) - sync a file segment with disk
aspell-autobuildhash (8) - Autobuilding aspell hash files for some dicts
ata_build_rw_tf (9)  - Build ATA taskfile for given read/write request
ata_qc_issue (9)     - issue taskfile to device
ata_rwcmd_protocol (9) - set taskfile r/w commands and protocol
ata_scsi_pass_thru (9) - convert ATA pass-thru CDB to taskfile
ata_tf_from_fis (9)  - Convert SATA FIS to ATA taskfile
ata_tf_read_block (9) - Read block address from ATA taskfile
ata_tf_to_fis (9)    - Convert ATA taskfile to SATA FIS structure
atapi_xlat (9)       - Initialize PACKET taskfile
autom4te (1)         - Generate files and scripts thanks to M4
autoreconf (1)       - Update generated configuration files
awstats (1)          - a free web server logfile analyzer to show you advance...
B::Showlex (3perl)   - Show lexical variables used in functions or files
bareword::filehandles (3pm) - disables bareword filehandles
basename (1)         - strip directory and suffix from filenames
bcrypt (1)           - blowfish file encryption
bdev_dax_supported (9) - Check if the device supports dax for filesystem
BIO_append_filename (3ssl) - FILE bio
BIO_get_fd (3ssl)    - file descriptor BIO
BIO_get_fp (3ssl)    - FILE bio
BIO_new_fd (3ssl)    - file descriptor BIO
BIO_new_file (3ssl)  - FILE bio
BIO_new_fp (3ssl)    - FILE bio
BIO_read_filename (3ssl) - FILE bio
BIO_rw_filename (3ssl) - FILE bio
BIO_s_fd (3ssl)      - file descriptor BIO
BIO_s_file (3ssl)    - FILE bio
BIO_set_fd (3ssl)    - file descriptor BIO
BIO_set_fp (3ssl)    - FILE bio
BIO_write_filename (3ssl) - FILE bio
blk_integrity_compare (9) - Compare integrity profile of two disks
blk_integrity_unregister (9) - Unregister block integrity profile
bmap (9)             - find a block number in a file
bootchart.conf (5)   - Boot performance analysis graphing tool configuration ...
bridge-utils-interfaces (5) - bridge-utils extensions for the interfaces (5) ...
btrfs (5)            - mount options and supported file attributes for the bt...
btrfs (8)            - control a btrfs filesystem
btrfs-balance (8)    - balance btrfs filesystem
btrfs-check (8)      - check or repair a btrfs filesystem offline
btrfs-convert (8)    - convert from ext2/3/4 filesystem to btrfs or rollback
btrfs-debug-tree (8) - dump btrfs filesystem metadata into stdout
btrfs-filesystem (8) - control btrfs filesystem
btrfs-image (8)      - create/restore an image of the filesystem
btrfs-qgroup (8)     - control the quota group of a btrfs filesystem
btrfs-quota (8)      - control the quota of a btrfs filesystem
btrfs-receive (8)    - receive subvolumes from stdin/file.
btrfs-rescue (8)     - Recover a damaged btrfs filesystem
btrfs-restore (8)    - try to restore files from a damaged btrfs filesystem(u...
btrfs-scrub (8)      - scrub btrfs filesystem
btrfs-send (8)       - send data of subvolume(s) to stdout/file.
btrfsck (8)          - check or repair a btrfs filesystem offline
btrfstune (8)        - tune various btrfs filesystem parameters
bunzip2 (1)          - a block-sorting file compressor, v1.0.6
bzcat (1)            - decompresses files to stdout
bzcmp (1)            - compare bzip2 compressed files
bzdiff (1)           - compare bzip2 compressed files
bzegrep (1)          - search possibly bzip2 compressed files for a regular e...
bzexe (1)            - compress executable files in place
bzfgrep (1)          - search possibly bzip2 compressed files for a regular e...
bzgrep (1)           - search possibly bzip2 compressed files for a regular e...
bzip2 (1)            - a block-sorting file compressor, v1.0.6
bzip2recover (1)     - recovers data from damaged bzip2 files
bzless (1)           - file perusal filter for crt viewing of bzip2 compresse...
bzmore (1)           - file perusal filter for crt viewing of bzip2 compresse...
c_rehash (1ssl)      - Create symbolic links to files named by the hash values
cacaplay (1)         - play libcaca files
Cache::FileBackend (3pm) - - a filesystem based persistance mechanism
Cache::FileCache (3pm) - - implements the Cache interface.
Cache::SizeAwareFileCache (3pm) - - extends Cache::FileCache
canonicalize_file_name (3) - return the canonicalized absolute pathname
capability.conf (5)  - configuration file for the pam_cap module
cat (1)              - concatenate files and print on the standard output
cgclear (1)          - unload the cgroup filesystem
cgconfig.conf (5)    - libcgroup configuration file
cgconfigparser (8)   - setup control group file system
cgred.conf (5)       - libcgroup configuration file
cgrules.conf (5)     - libcgroup configuration file
cgsnapshot (1)       - generate the configuration file for given controllers
chacl (1)            - change the access control list of a file or directory
charmap (5)          - character set description file
chattr (1)           - change file attributes on a Linux file system
chcon (1)            - change file security context
check_conflicting_open (9) - see if the given dentry points to a file that ha...
check_forensic (8)   - tool to extract mod_log_forensic output from apache lo...
chmod (1)            - change file mode bits
chmod (2)            - change permissions of a file
chown (1)            - change file owner and group
chown (2)            - change ownership of a file
chown32 (2)          - change ownership of a file
cksum (1)            - checksum and count the bytes in a file
clamav-milter.conf (5) - Configuration file for clamav-milter
clamd.conf (5)       - Configuration file for Clam AntiVirus Daemon
clamdscan (1)        - scan files and directories for viruses using Clam Anti...
clamscan (1)         - scan files and directories for viruses
clamsubmit (1)       - File submission utility for ClamAV
cleancss (1)         - CSS file minifyer
close (2)            - close a file descriptor
cmew (1)             - create Mew's database file
cmp (1)              - compare two files byte by byte
cntlist (5WN)        - file listing number of times each tagged sense occurs ...
codepage (1)         - extract a codepage from an MSDOS codepage file
colrm (1)            - remove columns from a file
comm (1)             - compare two sorted files line by line
compose (1)          - execute programs via entries in the mailcap file
CONF_modules_load_file (3ssl) - OpenSSL configuration functions
config (5ssl)        - OpenSSL CONF library configuration files
console-setup (5)    - configuration file for setupcon
Convert::BinHex (3pm) - extract data from Macintosh BinHex files
Convert::TNEF (3pm)  - Perl module to read TNEF files
COPY (7)             - copy data between a file and a table
core (5)             - core dump file
corosync.conf (5)    - corosync executive configuration file
cp (1)               - copy files and directories
CPAN::FirstTime (3perl) - Utility for CPAN::Config file Initialization
CPAN::Meta::YAML (3perl) - Read and write a subset of YAML for CPAN Meta files
cpgr (8)             - copy with locking the given file to the password or gr...
cpio (1)             - copy files to and from archives
cppw (8)             - copy with locking the given file to the password or gr...
crc32 (1)            - compute CRC-32 checksums for the given files
creat (2)            - open and possibly create a file
crontab (1)          - maintain crontab files for individual users (Vixie Cron)
csplit (1)           - split a file into sections determined by context lines
ctags (1)            - generate tag file for Emacs, vi
ctags.emacs23 (1)    - generate tag file for Emacs, vi
ctags.emacs24 (1)    - generate tag file for Emacs, vi
cut (1)              - remove sections from each line of files
d_alloc_pseudo (9)   - allocate a dentry (for lookup-less filesystems)
danted.conf (5)      - Dante server configuration file syntax
Date::Calendar::Profiles (3pm) - Some sample profiles for Date::Calendar and ...
db5.3_archive (1)    - Find unused log files for archiving purposes
db5.3_printlog (1)   - Dumps Berkeley DB log files in a human-readable format
DB_File (3perl)      - Perl5 access to Berkeley DB version 1.x
dbconfig-generate-include (1) - generate custom format db include files
dbconfig-load-include (1) - parse custom format db config files
DBD::DBM (3pm)       - a DBI driver for DBM & MLDBM files
DBD::File (3pm)      - Base class for writing file based DBI drivers
DBD::File::Developers (3pm) - Developers documentation for DBD::File
DBD::File::HowTo (3pm) - Guide to create DBD::File based driver
DBD::File::Roadmap (3pm) - Planned Enhancements for DBD::File and pure Perl D...
DBD::SQLite::VirtualTable::FileContent (3pm) - - virtual table for viewing fi...
DBI::Profile (3pm)   - Performance profiling and benchmarking for the DBI
DBI::ProfileData (3pm) - manipulate DBI::ProfileDumper data dumps
DBI::ProfileDumper (3pm) - profile DBI usage and output data to a file
DBI::ProfileDumper::Apache (3pm) - capture DBI profiling data from Apache/mod...
DBI::ProfileSubs (3pm) - Subroutines for dynamic profile Path
dbiprof (1p)         - command-line client for DBI::ProfileData
dd (1)               - convert and copy a file
deb-control (5)      - Debian packages' master control file format
deb-extra-override (5) - Debian archive extra override file
deb-origin (5)       - Vendor-specific information files
deb-override (5)     - Debian archive override file
deb-shlibs (5)       - Debian shared library information file
deb-src-control (5)  - Debian source packages' master control file format
deb-symbols (5)      - Debian's extended shared library information file
debconf-gettextize (1) - extract translations of debconf templates into PO files
debconf-updatepo (1) - update PO files about debconf templates
debconf.conf (5)     - debconf configuration file
debugfs (8)          - ext2/ext3/ext4 file system debugger
debugfs_create_atomic_t (9) - create a debugfs file that is used to read and ...
debugfs_create_automount (9) - create automount point in the debugfs filesystem
debugfs_create_blob (9) - create a debugfs file that is used to read a binary...
debugfs_create_bool (9) - create a debugfs file that is used to read and writ...
debugfs_create_devm_seqfile (9) - create a debugfs file that is bound to device.
debugfs_create_dir (9) - create a directory in the debugfs filesystem
debugfs_create_file (9) - create a file in the debugfs filesystem
debugfs_create_file_size (9) - create a file in the debugfs filesystem
debugfs_create_file_unsafe (9) - create a file in the debugfs filesystem
debugfs_create_regset32 (9) - create a debugfs file that returns register values
debugfs_create_size_t (9) - create a debugfs file that is used to read and wr...
debugfs_create_symlink (9) - create a symbolic link in the debugfs filesystem
debugfs_create_u16 (9) - create a debugfs file that is used to read and write...
debugfs_create_u32 (9) - create a debugfs file that is used to read and write...
debugfs_create_u32_array (9) - create a debugfs file that is used to read u32...
debugfs_create_u64 (9) - create a debugfs file that is used to read and write...
debugfs_create_u8 (9) - create a debugfs file that is used to read and write ...
debugfs_create_ulong (9) - create a debugfs file that is used to read and wri...
debugfs_create_x16 (9) - create a debugfs file that is used to read and write...
debugfs_create_x32 (9) - create a debugfs file that is used to read and write...
debugfs_create_x64 (9) - create a debugfs file that is used to read and write...
debugfs_create_x8 (9) - create a debugfs file that is used to read and write ...
debugfs_remove (9)   - removes a file or directory from the debugfs filesystem
debugfs_rename (9)   - rename a file/directory in the debugfs filesystem
debugfs_use_file_finish (9) - mark the end of file data access
debugfs_use_file_start (9) - mark the beginning of file data access
debugreiserfs (8)    - The debugging tool for the ReiserFS filesystem.
deluser.conf (5)     - configuration file for deluser(8) and delgroup(8) .
depmod (8)           - Generate modules.dep and map files.
device_create_bin_file (9) - create sysfs binary attribute file for device.
device_create_file (9) - create sysfs attribute file for device.
device_remove_bin_file (9) - remove sysfs binary attribute file
device_remove_file (9) - remove sysfs attribute file.
device_remove_file_self (9) - remove sysfs attribute file from its own method.
df (1)               - report file system disk space usage
dh_bugfiles (1)      - install bug reporting customization files into package...
dh_compress (1)      - compress files and fix symlinks in package build direc...
dh_fixperms (1)      - fix permissions of files in package build directories
dh_gconf (1)         - install GConf defaults files and register schemas
dh_gencontrol (1)    - generate and install control file
dh_install (1)       - install files into package build directories
dh_installdeb (1)    - install files into the DEBIAN directory
dh_installdebconf (1) - install files used by debconf in package build direct...
dh_installexamples (1) - install example files into package build directories
dh_installinfo (1)   - install info files
dh_installinit (1)   - install service init files into package build directories
dh_installlogcheck (1) - install logcheck rulefiles into etc/logcheck/
dh_installlogrotate (1) - install logrotate config files
dh_installmenu (1)   - install Debian menu files into package build directories
dh_installmime (1)   - install mime files into package build directories
dh_installpam (1)    - install pam support files
dh_installppp (1)    - install ppp ip-up and ip-down files
dh_installudev (1)   - install udev rules files
dh_installxmlcatalogs (1) - install and register XML catalog files
dh_lintian (1)       - install lintian override files into package build dire...
dh_makeshlibs (1)    - automatically create shlibs file and call dpkg-gensymbols
dh_md5sums (1)       - generate DEBIAN/md5sums file
dh_movefiles (1)     - move files out of debian/tmp into subpackages
dh_nativejava (1)    - compile jar files to native code and register them
dh_pypy (1)          - calculates PyPy dependencies, adds maintainer scripts ...
dh_python2 (1)       - calculates Python dependencies, adds maintainer script...
dh_python3 (1)       - calculates Python dependencies, adds maintainer script...
dh_ucf (1)           - register configuration files with ucf
dhclient.conf (5)    - DHCP client configuration file
diff (1)             - compare files line by line
diff3 (1)            - compare three files line by line
Digest::file (3perl) - Calculate digests of files
dir_colors (5)       - configuration file for dircolors(1)
dirfd (3)            - get directory stream file descriptor
dirname (1)          - strip last component from file name
dlltool (1)          - Create files needed to build and use DLLs.
dma_buf_export (9)   - Creates a new dma_buf, and associates an anon file wit...
dma_buf_fd (9)       - returns a file descriptor for the given dma_buf
do_splice_direct (9) - splices data directly between two files
dotlockfile (1)      - Utility to manage lockfiles
doveadm-log (1)      - Locate, test or reopen Dovecot's log files
doveadm-purge (1)    - Remove messages with refcount=0 from mdbox files
dpkg-distaddfile (1) - add entries to debian/files
dpkg-divert (8)      - override a package's version of a file
dpkg-genchanges (1)  - generate Debian .changes files
dpkg-gencontrol (1)  - generate Debian control files
dpkg-gensymbols (1)  - generate symbols files (shared library dependency info...
dpkg-mergechangelogs (1) - 3-way merge of debian/changelog files
dpkg-parsechangelog (1) - parse Debian changelog files
dpkg-repack (1)      - put an unpacked .deb file back together
dpkg-scanpackages (1) - create Packages index files
dpkg-scansources (1) - create Sources index files
dpkg-statoverride (8) - override ownership and mode of files
dpkg.cfg (5)         - dpkg configuration file
Dpkg::BuildProfiles (3) - handle build profiles
Dpkg::Checksums (3)  - generate and manipulate file checksums
Dpkg::Compression::FileHandle (3) - object dealing transparently with file co...
Dpkg::Conf (3)       - parse dpkg configuration files
Dpkg::Control::Info (3) - parse files like debian/control
dprintf (3)          - print to a file descriptor
driver_create_file (9) - create sysfs file for driver.
driver_remove_file (9) - remove sysfs file for driver.
du (1)               - estimate file space usage
dumpe2fs (8)         - dump ext2/ext3/ext4 filesystem information
dup (2)              - duplicate a file descriptor
dup2 (2)             - duplicate a file descriptor
dup3 (2)             - duplicate a file descriptor
dwww-convert (8)     - convert files to HTML for dwww
e2fsck (8)           - check a Linux ext2/ext3/ext4 file system
e2fsck.conf (5)      - Configuration file for e2fsck
e2image (8)          - Save critical ext2/ext3/ext4 filesystem metadata to a ...
e2label (8)          - Change the label on an ext2/ext3/ext4 filesystem
e2undo (8)           - Replay an undo log for an ext2/ext3/ext4 filesystem
e4defrag (8)         - online defragmenter for ext4 filesystem
eaccess (3)          - check effective user's permissions for a file
edit (1)             - execute programs via entries in the mailcap file
elf (5)              - format of Executable and Linking Format (ELF) files
elfedit (1)          - Update the ELF header of ELF files.
emacsclient (1)      - tells a running Emacs to visit a file
emacsclient.emacs23 (1) - tells a running Emacs to visit a file
emacsclient.emacs24 (1) - tells a running Emacs to visit a file
endgrent (3)         - get group file entry
endmntent (3)        - get filesystem descriptor file entry
endpwent (3)         - get password file entry
endspent (3)         - get shadow password file entry
endttyent (3)        - get ttys file entry
endutent (3)         - access utmp file entries
endutxent (3)        - access utmp file entries
envdir (8)           - runs another program with environment modified accordi...
epoll_create (2)     - open an epoll file descriptor
epoll_create1 (2)    - open an epoll file descriptor
epoll_pwait (2)      - wait for an I/O event on an epoll file descriptor
epoll_wait (2)       - wait for an I/O event on an epoll file descriptor
etags (1)            - generate tag file for Emacs, vi
etags.emacs23 (1)    - generate tag file for Emacs, vi
etags.emacs24 (1)    - generate tag file for Emacs, vi
euidaccess (3)       - check effective user's permissions for a file
eventfd (2)          - create a file descriptor for event notification
eventfd2 (2)         - create a file descriptor for event notification
eventfd_ctx_fileget (9) - Acquires a reference to the internal eventfd context.
eventfd_fget (9)     - Acquire a reference of an eventfd file descriptor.
eventfd_read (3)     - create a file descriptor for event notification
eventfd_write (3)    - create a file descriptor for event notification
exec (3)             - execute a file
execl (3)            - execute a file
execle (3)           - execute a file
execlp (3)           - execute a file
execv (3)            - execute a file
execvp (3)           - execute a file
execvpe (3)          - execute a file
ext2 (5)             - the second extended file system
ext3 (5)             - the second extended file system
ext4 (5)             - the fourth extended file system
ExtUtils::Command (3perl) - utilities to replace common UNIX commands in Make...
ExtUtils::Command::MM (3perl) - Commands for the MM's to use in Makefiles
ExtUtils::Install (3perl) - install files from here to there
ExtUtils::MakeMaker (3perl) - Create a module Makefile
ExtUtils::Manifest (3perl) - utilities to write and check a MANIFEST file
ExtUtils::Mkbootstrap (3perl) - make a bootstrap file for use by DynaLoader
ExtUtils::Mksymlists (3perl) - write linker options files for dynamic extension
ExtUtils::MM_MacOS (3perl) - once produced Makefiles for MacOS Classic
ExtUtils::Packlist (3perl) - manage .packlist files
ExtUtils::Typemaps (3perl) - Read/Write/Modify Perl/XS typemap files
faccessat (2)        - check user's permissions for a file
fadvise64 (2)        - predeclare an access pattern for file data
fadvise64_64 (2)     - predeclare an access pattern for file data
faillog (5)          - login failure logging file
faked (1)            - daemon that remembers fake ownership/permissions of fi...
faked-sysv (1)       - daemon that remembers fake ownership/permissions of fi...
faked-tcp (1)        - daemon that remembers fake ownership/permissions of fi...
fakeroot (1)         - run a command in an environment faking root privileges...
fakeroot-sysv (1)    - run a command in an environment faking root privileges...
fakeroot-tcp (1)     - run a command in an environment faking root privileges...
fallocate (1)        - preallocate or deallocate space to a file
fallocate (2)        - manipulate file space
fanotify (7)         - monitoring filesystem events
fanotify_mark (2)    - add, remove, or modify an fanotify mark on a filesyste...
fc-cache (1)         - build font information cache files
fc-cat (1)           - read font information cache files
fc-query (1)         - query font files
fc-scan (1)          - scan font files or directories
fc-validate (1)      - validate font files
fchmod (2)           - change permissions of a file
fchmodat (2)         - change permissions of a file
fchown (2)           - change ownership of a file
fchown32 (2)         - change ownership of a file
fchownat (2)         - change ownership of a file
fcntl (2)            - manipulate file descriptor
fcntl64 (2)          - manipulate file descriptor
fcntl_setlease (9)   - sets a lease on an open file
fdatasync (2)        - synchronize a file's in-core state with storage device
fexecve (3)          - execute program specified via file descriptor
fgetfilecon (3)      - get SELinux security context of a file
fgetfilecon_raw (3)  - get SELinux security context of a file
fgetgrent (3)        - get group file entry
fgetgrent_r (3)      - get group file entry reentrantly
fgetpwent (3)        - get password file entry
fgetpwent_r (3)      - get passwd file entry reentrantly
fgetspent (3)        - get shadow password file entry
fgetspent_r (3)      - get shadow password file entry
fgetwc (3)           - read a wide character from a FILE stream
fgetws (3)           - read a wide-character string from a FILE stream
fifo (7)             - first-in first-out special file, named pipe
file (1)             - determine file type
file-hierarchy (7)   - File system hierarchy overview
File::BaseDir (3pm)  - Use the Freedesktop.org base directory specification
File::Basename (3perl) - Parse file paths into directory, filename and suffix.
File::Compare (3perl) - Compare files or filehandles
File::Copy (3perl)   - Copy files or filehandles
File::Copy::Recursive (3pm) - Perl extension for recursively copying files an...
File::DesktopEntry (3pm) - Object to handle .desktop files
File::DosGlob (3perl) - DOS like globbing and then some
File::FcntlLock (3pm) - File locking with fcntl(2)
File::FcntlLock::Inline (3pm) - File locking with fcntl(2)
File::FcntlLock::Pure (3pm) - File locking with fcntl(2)
File::FcntlLock::XS (3pm) - File locking with fcntl(2)
File::Fetch (3perl)  - A generic file fetching mechanism
File::Find (3perl)   - Traverse a directory tree.
File::Glob (3perl)   - Perl extension for BSD glob routine
File::GlobMapper (3perl) - Extend File Glob to Allow Input and Output Files
File::Listing (3pm)  - parse directory listing
File::MimeInfo (3pm) - Determine file type
File::MimeInfo::Applications (3pm) - Find programs to open a file by mimetype
File::MimeInfo::Cookbook (3pm) - various code snippets
File::MimeInfo::Magic (3pm) - Determine file type with magic
File::MimeInfo::Rox (3pm) - Open files by mimetype "Rox style"
File::NCopy (3pm)    - Deprecated module. Use File::Copy::Recursive instead. ...
File::Path (3perl)   - Create or remove directory trees
File::Remove (3pm)   - Remove files and directories
File::Spec (3perl)   - portably perform operations on file names
File::Spec::Cygwin (3perl) - methods for Cygwin file specs
File::Spec::Epoc (3perl) - methods for Epoc file specs
File::Spec::Functions (3perl) - portably perform operations on file names
File::Spec::Mac (3perl) - File::Spec for Mac OS (Classic)
File::Spec::OS2 (3perl) - methods for OS/2 file specs
File::Spec::Unix (3perl) - File::Spec for Unix, base for other File::Spec mod...
File::Spec::VMS (3perl) - methods for VMS file specs
File::Spec::Win32 (3perl) - methods for Win32 file specs
File::stat (3perl)   - by-name interface to Perl's built-in stat() functions
File::Tail (3pm)     - Perl extension for reading from continuously updated f...
File::Temp (3perl)   - return name and handle of a temporary file safely
file_update_time (9) - update mtime and ctime time
FileCache (3perl)    - keep more files open than the system permits
filefrag (8)         - report on file fragmentation
filefuncs (3am)      - provide some file related functionality to gawk
FileHandle (3perl)   - supply object methods for filehandles
filemap_fault (9)    - read in file data for page fault handling
filemap_fdatawait (9) - wait for all under-writeback pages to complete
filemap_fdatawait_range (9) - wait for writeback to complete
filemap_flush (9)    - mostly a non-blocking flush
filemap_write_and_wait_range (9) - write out & wait on a file range
fileno (3)           - check and reset stream status
fileno_unlocked (3)  - nonlocking stdio functions
filesystems (5)      - Linux filesystem types: minix, ext, ext2, ext3, ext4, ...
filetest (3perl)     - Perl pragma to control the filetest permission operators
find (1)             - search for files in a directory hierarchy
findfs (8)           - find a filesystem by label or UUID
findmnt (8)          - find a filesystem
flock (2)            - apply or remove an advisory lock on an open file
flock_lock_inode_wait (9) - Apply a FLOCK-style lock to a file
flockfile (3)        - lock FILE for stdio
fnmatch (3)          - match filename or pathname
fnmatch (3am)        - compare a string against a filename wildcard
Font::AFM (3pm)      - Interface to Adobe Font Metrics files
fonts-conf (5)       - Font configuration files
fop-ttfreader (1)    - - A tool which reads TTF files and generates XML font ...
fpathconf (3)        - get configuration values for files
fputwc (3)           - write a wide character to a FILE stream
fputws (3)           - write a wide-character string to a FILE stream
freeze_bdev (9)      - - lock a filesystem and force it into a consistent state
freeze_super (9)     - lock the filesystem and force it into a consistent state
freshclam.conf (5)   - Configuration file for Clam AntiVirus database update ...
fs (5)               - Linux filesystem types: minix, ext, ext2, ext3, ext4, ...
fsadm (8)            - utility to resize or check filesystem on a device
fsck (8)             - check and repair a Linux filesystem
fsck.cramfs (8)      - fsck compressed ROM file system
fsck.ext2 (8)        - check a Linux ext2/ext3/ext4 file system
fsck.ext3 (8)        - check a Linux ext2/ext3/ext4 file system
fsck.ext4 (8)        - check a Linux ext2/ext3/ext4 file system
fsck.ext4dev (8)     - check a Linux ext2/ext3/ext4 file system
fsck.minix (8)       - check consistency of Minix filesystem
fsck.reiserfs (8)    - The checking tool for the ReiserFS filesystem.
fseeko (3)           - seek to or report file position
fsfreeze (8)         - suspend access to a filesystem (Ext3/4, ReiserFS, JFS,...
fstab (5)            - static information about the filesystems
fstat (2)            - get file status
fstat64 (2)          - get file status
fstatat (2)          - get file status
fstatat64 (2)        - get file status
fstatfs (2)          - get filesystem statistics
fstatfs64 (2)        - get filesystem statistics
fstatvfs (2)         - get filesystem statistics
fstatvfs (3)         - get filesystem statistics
fstrim (8)           - discard unused blocks on a mounted filesystem
fsync (2)            - synchronize a file's in-core state with storage device
ftello (3)           - seek to or report file position
ftruncate (2)        - truncate a file to a specified length
ftruncate64 (2)      - truncate a file to a specified length
ftrylockfile (3)     - lock FILE for stdio
fts (3)              - traverse a file hierarchy
fts_children (3)     - traverse a file hierarchy
fts_close (3)        - traverse a file hierarchy
fts_open (3)         - traverse a file hierarchy
fts_read (3)         - traverse a file hierarchy
fts_set (3)          - traverse a file hierarchy
ftw (3)              - file tree walk
funlockfile (3)      - lock FILE for stdio
fuser (1)            - identify processes using files or sockets
futimens (3)         - change file timestamps with nanosecond precision
futimes (3)          - change file timestamps
futimesat (2)        - change timestamps of a file relative to a directory fi...
fwide (3)            - set and determine the orientation of a FILE stream
gai.conf (5)         - getaddrinfo(3) configuration file
GDBM_File (3perl)    - Perl5 access to the gdbm library.
gendiff (1)          - utility to aid in error-free diff file generation
generic_file_read_iter (9) - generic filesystem read routine
generic_file_splice_read (9) - splice data from file to a pipe
generic_file_write_iter (9) - write data to a file
generic_permission (9) - check for access rights on a Posix-like filesystem
generic_setlease (9) - sets a lease on an open file
genrandom (8)        - generate a file containing random data
get_dma_buf (9)      - convenience wrapper for get_file.
getcap (8)           - examine file capabilities
getdirentries (3)    - get directory entries in a filesystem-independent format
getfacl (1)          - get file access control lists
getfilecon (3)       - get SELinux security context of a file
getfilecon_raw (3)   - get SELinux security context of a file
getfscreatecon (3)   - get or set the SELinux security context used for creat...
getfscreatecon_raw (3) - get or set the SELinux security context used for cre...
getfsfile (3)        - handle fstab entries
getgrent (3)         - get group file entry
getgrent_r (3)       - get group file entry reentrantly
getgrgid (3)         - get group file entry
getgrgid_r (3)       - get group file entry
getgrnam (3)         - get group file entry
getgrnam_r (3)       - get group file entry
getmntent (3)        - get filesystem descriptor file entry
getmntent_r (3)      - get filesystem descriptor file entry
getpwent (3)         - get password file entry
getpwent_r (3)       - get passwd file entry reentrantly
getpwnam (3)         - get password file entry
getpwnam_r (3)       - get password file entry
getpwuid (3)         - get password file entry
getpwuid_r (3)       - get password file entry
getspent (3)         - get shadow password file entry
getspent_r (3)       - get shadow password file entry
getspnam (3)         - get shadow password file entry
getspnam_r (3)       - get shadow password file entry
getttyent (3)        - get ttys file entry
getttynam (3)        - get ttys file entry
getumask (3)         - get file creation mask
getutent (3)         - access utmp file entries
getutent_r (3)       - access utmp file entries
getutid (3)          - access utmp file entries
getutid_r (3)        - access utmp file entries
getutline (3)        - access utmp file entries
getutline_r (3)      - access utmp file entries
getutxent (3)        - access utmp file entries
getutxid (3)         - access utmp file entries
getutxline (3)       - access utmp file entries
getwc (3)            - read a wide character from a FILE stream
git-add (1)          - Add file contents to the index
git-annotate (1)     - Annotate file lines with commit information
git-apply (1)        - Apply a patch to files and/or to the index
git-archive (1)      - Create an archive of files from a named tree
git-blame (1)        - Show what revision and author last modified each line ...
git-cat-file (1)     - Provide content or type and size information for repos...
git-check-ignore (1) - Debug gitignore / exclude files
git-checkout-index (1) - Copy files from the index to the working tree
git-clean (1)        - Remove untracked files from the working tree
git-diff-files (1)   - Compares files in the working tree and the index
git-gc (1)           - Cleanup unnecessary files and optimize the local repos...
git-hash-object (1)  - Compute object ID and optionally creates a blob from a...
git-index-pack (1)   - Build pack index file for an existing packed archive
git-ls-files (1)     - Show information about files in the index and the work...
git-merge-file (1)   - Run a three-way file merge
git-merge-index (1)  - Run a merge for files needing merging
git-merge-one-file (1) - The standard helper program to use with git-merge-index
git-mv (1)           - Move or rename a file, a directory, or a symlink
git-pack-redundant (1) - Find redundant pack files
git-prune-packed (1) - Remove extra objects that are already in pack files
git-rm (1)           - Remove files from the working tree and from the index
git-stage (1)        - Add file contents to the staging area
git-unpack-file (1)  - Creates a temporary file with a blob's contents
git-update-index (1) - Register file contents in the working tree to the index
git-update-server-info (1) - Update auxiliary info file to help dumb servers
git-verify-pack (1)  - Validate packed Git archive files
gitignore (5)        - Specifies intentionally untracked files to ignore
gitweb.conf (5)      - Gitweb (Git web interface) configuration file
GnuPG::Tie (3pm)     - Tied filehandle interface to encryption with the GNU P...
gpg-zip (1)          - encrypt or sign files into an archive
gprof (1)            - display call graph profile data
grep-aptavail (1)    - grep Debian control files
grep-available (1)   - grep Debian control files
grep-dctrl (1)       - grep Debian control files
grep-debtags (1)     - grep Debian control files
grep-status (1)      - grep Debian control files
group (5)            - user group file
group.conf (5)       - configuration file for the pam_group module
grpck (8)            - verify integrity of group files
grub-file (1)        - check file type
grub-fstest (1)      - debug tool for GRUB filesystem drivers
grub-kbdcomp (1)     - generate a GRUB keyboard layout file
grub-macbless (8)    - bless a mac file/directory
grub-mkconfig (8)    - generate a GRUB configuration file
grub-mkdevicemap (8) - make a device map file automatically
grub-mkfont (1)      - make GRUB font files
grub-mklayout (1)    - generate a GRUB keyboard layout file
grub-mount (1)       - export GRUB filesystem with FUSE
gshadow (5)          - shadowed group file
gunzip (1)           - compress or expand files
gzexe (1)            - compress executable files in place
gzip (1)             - compress or expand files
h2ph (1)             - convert .h C header files to .ph Perl header files
h2xs (1)             - convert .h C header files to Perl extensions
hasmntopt (3)        - get filesystem descriptor file entry
hdparm.conf (5)      - Debian configuration file for hdparm
head (1)             - output the first part of files
helpztags (1)        - generate the help tags file for directory
hgignore (5)         - syntax for Mercurial ignore files
hgrc (5)             - configuration files for Mercurial
hier (7)             - description of the filesystem hierarchy
host.conf (5)        - resolver configuration file
hostname (5)         - Local hostname configuration file
hosts.allow (5)      - format of host access control files
hosts.deny (5)       - format of host access control files
hosts_access (5)     - format of host access control files
htdigest (1)         - manage user files for digest authentication
HTML::Mason::Component::FileBased (3pm) - Mason File-Based Component Class
HTML::Mason::Resolver::File (3pm) - Component path resolver for file-based co...
htpasswd (1)         - Manage user files for basic authentication
HTTP::Cookies::Netscape (3pm) - access to Netscape cookies files
httxt2dbm (1)        - Generate dbm files for use with RewriteMap
iceauth (1)          - ICE authority file utility
ifnames (1)          - Extract CPP conditionals from a set of files
igawk (1)            - gawk with include files
iget5_locked (9)     - obtain an inode from a mounted file system
iget_locked (9)      - obtain an inode from a mounted file system
img2txt (1)          - convert images to various text-based coloured files
info2www (1)         - read info files with a WWW browser
initramfs.conf (5)   - configuration file for mkinitramfs
innochecksum (1)     - offline InnoDB file checksum utility
inotify (7)          - monitoring filesystem events
inotifywait (1)      - wait for changes to files using inotify
inotifywatch (1)     - gather filesystem access statistics using inotify
install (1)          - copy files and set attributes
intro (4)            - introduction to special files
intro (5)            - introduction to file formats
IO::AtomicFile (3pm) - write a file which is updated atomically
IO::Compress::Bzip2 (3perl) - Write bzip2 files/buffers
IO::Compress::Deflate (3perl) - Write RFC 1950 files/buffers
IO::Compress::Gzip (3perl) - Write RFC 1952 files/buffers
IO::Compress::RawDeflate (3perl) - Write RFC 1951 files/buffers
IO::Compress::Zip (3perl) - Write zip files/buffers
IO::File (3perl)     - supply object methods for filehandles
IO::HTML (3pm)       - Open an HTML file with automatic charset detection
IO::InnerFile (3pm)  - define a file inside another file
IO::Multiplex (3pm)  - Manage IO on many file handles
IO::Uncompress::AnyInflate (3perl) - Uncompress zlib-based (zip, gzip) file/b...
IO::Uncompress::AnyUncompress (3perl) - Uncompress gzip, zip, bzip2 or lzop f...
IO::Uncompress::Bunzip2 (3perl) - Read bzip2 files/buffers
IO::Uncompress::Gunzip (3perl) - Read RFC 1952 files/buffers
IO::Uncompress::Inflate (3perl) - Read RFC 1950 files/buffers
IO::Uncompress::RawInflate (3perl) - Read RFC 1951 files/buffers
IO::Uncompress::Unzip (3perl) - Read zip files/buffers
IO::Wrap (3pm)       - wrap raw filehandles in IO::Handle interface
ipc_init_proc_interface (9) - create a proc interface for sysipc types using ...
isatty (3)           - test whether a file descriptor refers to a terminal
isfdtype (3)         - test file type of a file descriptor
isoqlog (1)          - multi-MTA log file analyzer
isosize (8)          - output the length of an iso9660 filesystem
ispell (5)           - format of ispell dictionaries and affix files
ispell-autobuildhash (8) - Autobuilding the ispell hash file for some dicts
issue (5)            - prelogin message and identification file
iter_file_splice_write (9) - splice data from a pipe to a file
join (1)             - join lines of two files on a common field
journald.conf (5)    - Journal service configuration file
kernel-pkg.conf (5)  - configuration file for make-kpkg
keyboard (5)         - keyboard configuration file
lchown (2)           - change ownership of a file
lchown32 (2)         - change ownership of a file
lckpwdf (3)          - get shadow password file entry
ldap.conf (5)        - LDAP configuration file/environment variables
lessfile (1)         - "input preprocessor" for less.
lexnames (5WN)       - List of WordNet lexicographer file names and numbers
lgetfilecon (3)      - get SELinux security context of a file
lgetfilecon_raw (3)  - get SELinux security context of a file
libaudit.conf (5)    - libaudit configuration file
libxml (3)           - library used to parse XML files
limits.conf (5)      - configuration file for the pam_limits module
link (1)             - call the link function to create a link to a file
link (2)             - make a new name for a file
linkat (2)           - make a new name for a file
llseek (2)           - reposition read/write file offset
lmhosts (5)          - The Samba NetBIOS hosts file
ln (1)               - make links between files
LOAD (7)             - load a shared library file
locale (5)           - describes a locale definition file
locale-gen (8)       - generates localisation files from templates
locale.conf (5)      - Configuration file for locale settings
locale.gen (5)       - Configuration file for locale-gen
localedef (1)        - compile locale definition files
localtime (5)        - Local timezone configuration file
lockf (3)            - apply, test or remove a POSIX lock on an open file
lockfile (1)         - conditional semaphore-file creator
logind.conf (5)      - Login manager configuration file
logresolve (1)       - Resolve IP-addresses to hostnames in Apache log files
logsave (8)          - save the output of a command in a logfile
logwtmp (3)          - append an entry to the wtmp file
lookup_one_len (9)   - filesystem helper to lookup single pathname component
lookup_one_len_unlocked (9) - filesystem helper to lookup single pathname com...
lorder (1)           - list dependencies for object files
lsattr (1)           - list file attributes on a Linux second extended file s...
lseek (2)            - reposition read/write file offset
lseek64 (3)          - reposition 64-bit read/write file offset
lsof (8)             - list open files
lstat (2)            - get file status
lstat64 (2)          - get file status
lutimes (3)          - change file timestamps
lvm.conf (5)         - Configuration file for LVM2
lwp-download (1p)    - Fetch large files from the web
LWP::MediaTypes (3pm) - guess media type for a file or a URL
lxc-usernet (5)      - unprivileged user network administration file.
lxc.conf (5)         - Configuration files for LXC.
lxc.container.conf (5) - LXC container configuration file
lxc.system.conf (5)  - LXC system configuration file
lzcat (1)            - Compress or decompress .xz and .lzma files
lzcmp (1)            - compare compressed files
lzdiff (1)           - compare compressed files
lzegrep (1)          - search compressed files for a regular expression
lzfgrep (1)          - search compressed files for a regular expression
lzgrep (1)           - search compressed files for a regular expression
lzless (1)           - view xz or lzma compressed (text) files
lzma (1)             - Compress or decompress .xz and .lzma files
lzmainfo (1)         - show information stored in the .lzma file header
lzmore (1)           - view xz or lzma compressed (text) files
machine-id (5)       - Local machine ID configuration file
machine-info (5)     - Local machine information file
magic (5)            - file command's magic pattern file
Mail::Box::Dir (3pm) - handle folders with a file per message.
Mail::Box::File (3pm) - handle file-based folders
Mail::Box::File::Message (3pm) - one message in a Mbox folder
Mail::Box::Locker::DotLock (3pm) - lock a folder with a separate file
Mail::Box::Locker::FcntlLock (3pm) - lock a folder using File::FcntlLock
Mail::Box::Locker::Flock (3pm) - lock a folder using kernel file-locking
Mail::Box::Locker::NFS (3pm) - lock a folder with a separate file, NFS-safe
Mail::Box::Locker::POSIX (3pm) - lock a folder using kernel file-locking
Mail::Box::MH::Index (3pm) - keep index files for messages.
Mail::Box::Parser::Perl (3pm) - reading messages from file using Perl
Mail::Cap (3pm)      - Parse mailcap files
Mail::Message::Body::File (3pm) - body of a message temporarily stored in a file
Mail::Message::Construct::Read (3pm) - read a Mail::Message from a file handle
Mail::SpamAssassin::Conf (3pm) - SpamAssassin configuration file
Mail::SpamAssassin::Logger::File (3pm) - log to file
mailcap (5)          - metamail capabilities file
mairixrc (5)         - configuration file for mairix(1)
makefs (8)           - create a file system image from a directory tree
manpath (5)          - format of the /etc/manpath.config file
Mason::Plugin::TidyObjectFiles (3pm) - Tidy object files
master (5)           - Postfix master process configuration file format
matchpathcon (3)     - get the default SELinux security context for the speci...
matchpathcon_filespec_add (3) - check and report whether any specification in...
matchpathcon_filespec_destroy (3) - check and report whether any specificatio...
matchpathcon_filespec_eval (3) - check and report whether any specification i...
matchpathcon_fini (3) - get the default SELinux security context for the spec...
matchpathcon_index (3) - get the default SELinux security context for the spe...
matchpathcon_init (3) - get the default SELinux security context for the spec...
Memoize::AnyDBM_File (3perl) - glue to provide EXISTS for AnyDBM_File for Sto...
Memoize::ExpireFile (3perl) - test for Memoize expiration semantics
Memoize::NDBM_File (3perl) - glue to provide EXISTS for NDBM_File for Storabl...
Memoize::SDBM_File (3perl) - glue to provide EXISTS for SDBM_File for Storabl...
memusage (1)         - profile memory usage of a program
MIME::Parser::Filer (3pm) - manage file-output of the parser
mimeopen (1p)        - Open files by mimetype
mimetype (1p)        - Determine file type
mk_modmap (8)        - translate a Linux keytable file into an xmodmap file
mke2fs (8)           - create an ext2/ext3/ext4 filesystem
mke2fs.conf (5)      - Configuration file for mke2fs
mkfifo (3)           - make a FIFO special file (a named pipe)
mkfifoat (3)         - make a FIFO special file (a named pipe)
mkfs (8)             - build a Linux filesystem
mkfs.bfs (8)         - make an SCO bfs filesystem
mkfs.btrfs (8)       - create a btrfs filesystem
mkfs.cramfs (8)      - make compressed ROM file system
mkfs.ext2 (8)        - create an ext2/ext3/ext4 filesystem
mkfs.ext3 (8)        - create an ext2/ext3/ext4 filesystem
mkfs.ext4 (8)        - create an ext2/ext3/ext4 filesystem
mkfs.ext4dev (8)     - create an ext2/ext3/ext4 filesystem
mkfs.minix (8)       - make a Minix filesystem
mkfs.reiserfs (8)    - The create tool for the Linux ReiserFS filesystem.
mkfs.xfs (8)         - construct an XFS filesystem
mklost+found (8)     - create a lost+found directory on a mounted Linux secon...
mknod (1)            - make block or character special files
mknod (2)            - create a special or ordinary file
mknodat (2)          - create a special or ordinary file
mkostemp (3)         - create a unique temporary file
mkostemps (3)        - create a unique temporary file
mkreiserfs (8)       - The create tool for the Linux ReiserFS filesystem.
mkstemp (3)          - create a unique temporary file
mkstemps (3)         - create a unique temporary file
mktemp (1)           - create a temporary file or directory
mktemp (3)           - make a unique temporary filename
mmap (2)             - map or unmap files or devices into memory
mmap2 (2)            - map files or devices into memory
mmap64 (3)           - map or unmap files or devices into memory
ModPerl::CScan (3pm) - scan C language files for easily recognized constructs.
Module::Build::PPMMaker (3perl) - Perl Package Manager file creation
Module::Load (3perl) - runtime require of both modules and files
Module::Metadata (3perl) - Gather package and POD information from perl modul...
more (1)             - file perusal filter for crt viewing
mount (2)            - mount filesystem
mount (8)            - mount a filesystem
msync (2)            - synchronize a file with a memory map
munmap (2)           - map or unmap files or devices into memory
mutt_dotlock (1)     - Lock mail spool files.
muttrc (5)           - Configuration file for the Mutt Mail User Agent
muttrc-org (5)       - Configuration file for the Mutt Mail User Agent
muttrc-patched (5)   - Configuration file for the Mutt Mail User Agent
mv (1)               - move (rename) files
my_print_defaults (1) - display options from option files
myisamlog (1)        - display MyISAM log file contents
mysql_find_rows (1)  - extract SQL statements from files
mysql_fix_extensions (1) - normalize table file name extensions
mysqlbinlog (1)      - utility for processing binary log files
mysqldumpslow (1)    - Summarize slow query log files
name_to_handle_at (2) - obtain handle for a pathname and open file via a handle
named-checkconf (8)  - named configuration file syntax checking tool
named-checkzone (8)  - zone file validity checking or converting tool
named-compilezone (8) - zone file validity checking or converting tool
named.conf (5)       - configuration file for named
namespace.conf (5)   - the namespace configuration file
nanorc (5)           - GNU nano's rcfile
ncftp (1)            - Browser program for the File Transfer Protocol
ncftp3 (1)           - Browser program for the File Transfer Protocol
ncftpget (1)         - Internet file transfer program for scripts
ncftpls (1)          - Internet file transfer program for scripts
ncftpput (1)         - Internet file transfer program for scripts
NDBM_File (3perl)    - Tied access to ndbm files
Net::DNS::ZoneFile (3pm) - DNS zone file
Net::Netrc (3perl)   - OO interface to users netrc file
Net::SSH2::File (3pm) - SSH 2 SFTP file object
Net::SSLeay::Handle (3pm) - Perl module that lets SSL (HTTPS) sockets be hand...
nfsiostat-sysstat (1) - (the nfsiostat command from the sysstat package) Repo...
nftw (3)             - file tree walk
nl (1)               - number lines of files
nm (1)               - list symbols from object files
nm86 (1)             - Examine object, archive or executable files
notmuch-config (1)   - access notmuch configuration file
notmuch-restore (1)  - restores the tags from the given file (see notmuch dump)
nss (5)              - Name Service Switch configuration file
nsswitch.conf (5)    - Name Service Switch configuration file
objcopy (1)          - copy and translate object files
objdump (1)          - display information from object files.
objdump86 (1)        - Examine object, archive or executable files
od (1)               - dump files in octal and other formats
ODBM_File (3perl)    - Tied access to odbm files
ogg123 (1)           - plays Ogg Vorbis files
oggdec (1)           - simple decoder, Ogg Vorbis file to PCM audio file (Wav...
ogginfo (1)          - gives information about Ogg files, and does extensive ...
oid2name (1)         - resolve OIDs and file nodes in a PostgreSQL data direc...
oldfind (1)          - search for files in a directory hierarchy
oldfstat (2)         - get file status
oldlstat (2)         - get file status
oldstat (2)          - get file status
open (2)             - open and possibly create a file
open_by_handle_at (2) - obtain handle for a pathname and open file via a handle
openat (2)           - open and possibly create a file
page_cache_async_readahead (9) - file readahead for marked pages
page_cache_sync_readahead (9) - generic file readahead
pam-auth-update (8)  - manage PAM configuration using packaged profiles
pam.conf (5)         - PAM configuration files
pam.d (5)            - PAM configuration files
pam_env.conf (5)     - the environment variables config file
pam_issue (8)        - PAM module to add issue file to user prompt
pam_listfile (8)     - deny or allow services based on an arbitrary file
pam_motd (8)         - Display the motd file
pam_umask (8)        - PAM module to set the file mode creation mask
Parse::CPAN::Meta (3perl) - Parse META.yml and META.json CPAN metadata files
passwd (5)           - the password file
paste (1)            - merge lines of files
patch (1)            - apply a diff file to an original
path_resolution (7)  - how a pathname is resolved to a file
pathchk (1)          - check whether file names are valid or portable
pathconf (3)         - get configuration values for files
pax (1)              - read and write file archives and copy directory hierar...
paxcpio (1)          - copy file archives in and out
pci_adjust_legacy_attr (9) - adjustment of legacy file attributes
pci_create_legacy_files (9) - create legacy I/O port and memory files
pci_create_resource_files (9) - create resource files in sysfs for dev
pci_remove_resource_files (9) - cleanup resource files
pci_remove_sysfs_dev_files (9) - cleanup PCI specific sysfs files
pdfdetach (1)        - Portable Document Format (PDF) document embedded file ...
pdftohtml (1)        - program to convert PDF files into HTML, XML and PNG im...
peekfd (1)           - peek at file descriptors of running processes
perlfaq5 (1)         - Files and Formats
perlopentut (1)      - simple recipes for opening files and pipes in Perl
pflogsumm (1)        - Produce Postfix MTA logfile summary
pg (1)               - browse pagewise through text files
pg_archivecleanup (1) - clean up PostgreSQL WAL archive files
pg_conftool (1)      - read and edit PostgreSQL cluster configuration files
pg_dump (1)          - extract a PostgreSQL database into a script file or ot...
pg_dumpall (1)       - extract a PostgreSQL database cluster into a script file
pg_restore (1)       - restore a PostgreSQL database from an archive file cre...
pivot_root (2)       - change the root filesystem
pivot_root (8)       - change the root filesystem
pkcs12 (1ssl)        - PKCS#12 file utility
pl2pm (1)            - Rough tool to translate Perl4 .pl files to Perl5 .pm m...
po2debconf (1)       - merge master templates file and PO files
pod2html (1)         - convert .pod files to .html files
pod2readme (1p)      - script to convert POD to README file
pod2usage (1)        - print usage messages from embedded pod docs in files
Pod::Html (3perl)    - module to convert pod files to HTML
Pod::Readme (3pm)    - Convert POD to README file
Pod::Simple::HTMLBatch (3perl) - convert several Pod files to several HTML files
podchecker (1)       - check the syntax of POD format documentation files
podebconf-display-po (1) - display content of a PO file in a debconf interface
podebconf-report-po (1) - send outdated debconf PO files to the last translators
poll (2)             - wait for some event on a file descriptor
posix_fadvise (2)    - predeclare an access pattern for file data
posix_fallocate (3)  - allocate file space
posix_lock_file (9)  - Apply a POSIX-style lock to a file
posix_lock_inode_wait (9) - Apply a POSIX-style lock to a file
posix_unblock_lock (9) - stop waiting for a file lock
postcat (1)          - show Postfix queue file contents
ppoll (2)            - wait for some event on a file descriptor
pr (1)               - convert text files for printing
pread (2)            - read from or write to a file descriptor at a given offset
pread64 (2)          - read from or write to a file descriptor at a given offset
preconv (1)          - convert encoding of input files to something GNU troff...
prename (1)          - renames multiple files
print (1)            - execute programs via entries in the mailcap file
proc (5)             - process information pseudo-filesystem
procfs (5)           - process information pseudo-filesystem
procmailex (5)       - procmail rcfile examples
procmailrc (5)       - procmail rcfile
profil (3)           - execution time profile
projid (5)           - the project name mapping file
protocols (5)        - protocols definition file
ptargrep (1)         - Apply pattern matching to the contents of files in a t...
ptx (1)              - produce a permuted index of file contents
pure-ftpd (8)        - simple File Transfer Protocol server
pure-ftpd-virtualchroot (8) - simple File Transfer Protocol server
pure-pw (8)          - Manage virtual users files for Pure-FTPd
pure-pwconvert (8)   - Generate a virtual users file from system accounts
pure-quotacheck (8)  - Update virtual quota files for Pure-FTPd
pure-statsdecode (8) - Show human-readable dates from a "stats" logfile
putgrent (3)         - write a group database entry to a file
putpwent (3)         - write a password file entry
putspent (3)         - get shadow password file entry
pututline (3)        - access utmp file entries
pututxline (3)       - access utmp file entries
putwc (3)            - write a wide character to a FILE stream
pwck (8)             - verify integrity of password files
pwrite (2)           - read from or write to a file descriptor at a given offset
pwrite64 (2)         - read from or write to a file descriptor at a given offset
py3clean (1)         - removes .pyc and .pyo files
py3compile (1)       - byte compile Python 3 source files
pyclean (1)          - removes .pyc and .pyo files
pycompile (1)        - byte compile Python source files
pygmentize (1)       - highlights the input file
RAND_file_name (3ssl) - PRNG seed file
RAND_load_file (3ssl) - PRNG seed file
RAND_write_file (3ssl) - PRNG seed file
rcp (1)              - secure copy (remote file copy program)
rcs-checkin (1)      - check files into RCS
rcs-checkin.emacs23 (1) - check files into RCS
rdoc (1)             - Generate documentation from Ruby script files
rdoc2.1 (1)          - Generate documentation from Ruby script files
read (2)             - read from a file descriptor
readahead (2)        - initiate file readahead into page cache
readelf (1)          - Displays information about ELF files.
readfile (3am)       - return the entire contents of a file as a string
readlink (1)         - print resolved symbolic links or canonical file names
readprofile (8)      - read kernel profiling information
recode (1)           - converts files between character sets
Regexp::Common::URI::file (3pm) - - Returns a pattern for file URIs.
Regexp::Common::URI::news (3pm) - - Returns a pattern for file URIs.
register_filesystem (9) - register a new filesystem
reiserfsck (8)       - The checking tool for the ReiserFS filesystem.
reiserfstune (8)     - The tunning tool for the ReiserFS filesystem.
relay_file_mmap (9)  - mmap file op for relay files
relay_file_open (9)  - open file op for relay files
relay_file_poll (9)  - poll file op for relay files
relay_file_read_end_pos (9) - return the new read position
relay_file_read_start_pos (9) - find the first available byte to read
relay_file_read_subbuf_avail (9) - return bytes available in sub-buffer
relay_file_release (9) - release file op for relay files
relay_late_setup_files (9) - triggers file creation
remap_file_pages (2) - create a nonlinear file mapping
remove (3)           - remove a file or directory
rename (1)           - renames multiple files
rename (2)           - change the name or location of a file
rename.ul (1)        - rename files
renameat (2)         - change the name or location of a file
renameat2 (2)        - change the name or location of a file
reportbug.conf (5)   - The configuration file for reportbug
resize2fs (8)        - ext2/ext3/ext4 file system resizer
resize_reiserfs (8)  - resizer tool for the ReiserFS filesystem
resolv.conf (5)      - resolver configuration file
resolved.conf (5)    - Network Name Resolution configuration file
resolver (5)         - resolver configuration file
rio_create_sysfs_dev_files (9) - create RIO specific sysfs files
rio_remove_sysfs_dev_files (9) - cleanup RIO specific sysfs files
ripole (1)           - extracts attachments from OLE2 data files (ie, MS Offi...
rm (1)               - remove files or directories
rndc.conf (5)        - rndc configuration file
rpc_mkpipe_dentry (9) - make an rpc_pipefs file for kernel<->userspace commun...
rrdflushcached (1)   - Flush the values for a spcific RRD file from memory.
rrdresize (1)        - alters the size of an RRA and creates a new .rrd file
rsync (1)            - a fast, versatile, remote (and local) file-copying tool
rsyncd.conf (5)      - configuration file for rsync in daemon mode
rsyslog.conf (5)     - rsyslogd(8) configuration file
run-mailcap (1)      - execute programs via entries in the mailcap file
rwarray (3am)        - write and read gawk arrays to/from files
sa1 (8)              - Collect and store binary data in the system activity d...
sa2 (8)              - Create a report from the current standard system activ...
samba (7)            - A Windows AD and SMB/CIFS fileserver for UNIX
savelog (8)          - save a log file
scp (1)              - secure copy (remote file copy program)
SDBM_File (3perl)    - Tied access to sdbm files
sdiff (1)            - side-by-side merge of file differences
Search::Dict (3perl) - look - search for key in dictionary file
securetty (5)        - file which lists terminals from which root can log in
securityfs_create_dir (9) - create a directory in the securityfs filesystem
securityfs_create_file (9) - create a file in the securityfs filesystem
securityfs_remove (9) - removes a file or directory from the securityfs files...
see (1)              - execute programs via entries in the mailcap file
SelectSaver (3perl)  - save and restore selected file handle
selinux_binary_policy_path (3) - These functions return the paths to the acti...
selinux_booleans_path (3) - These functions return the paths to the active SE...
selinux_colors_path (3) - Return a path to the active SELinux policy color co...
selinux_contexts_path (3) - These functions return the paths to the active SE...
selinux_current_policy_path (3) - These functions return the paths to the act...
selinux_default_context_path (3) - These functions return the paths to the ac...
selinux_default_type_path (3) - These functions return the paths to the activ...
selinux_failsafe_context_path (3) - These functions return the paths to the a...
selinux_file_context_cmp (3) - Compare two SELinux security contexts excludin...
selinux_file_context_homedir_path (3) - These functions return the paths to t...
selinux_file_context_local_path (3) - These functions return the paths to the...
selinux_file_context_path (3) - These functions return the paths to the activ...
selinux_file_context_verify (3) - Compare the SELinux security context on dis...
selinux_homedir_context_path (3) - These functions return the paths to the ac...
selinux_lsetfilecon_default (3) - set the file context to the system defaults
selinux_media_context_path (3) - These functions return the paths to the acti...
selinux_netfilter_context_path (3) - These functions return the paths to the ...
selinux_path (3)     - These functions return the paths to the active SELinux...
selinux_policy_root (3) - return the path of the SELinux policy files for thi...
selinux_removable_context_path (3) - These functions return the paths to the ...
selinux_securetty_types_path (3) - These functions return the paths to the ac...
selinux_set_policy_root (3) - return the path of the SELinux policy files for...
selinux_user_contexts_path (3) - These functions return the paths to the acti...
selinux_usersconf_path (3) - These functions return the paths to the active S...
selinux_x_context_path (3) - These functions return the paths to the active S...
semanage.conf (5)    - global configuration file for the SELinux Management l...
sendfile (2)         - transfer data between file descriptors
sendfile64 (2)       - transfer data between file descriptors
sepermit.conf (5)    - configuration file for the pam_sepermit module
seq_file_path (9)    - seq_file interface to print a pathname of a file
seq_lseek (9)        - ->llseek method for sequential files.
seq_open (9)         - initialize sequential file
seq_path (9)         - seq_file interface to print a pathname
seq_read (9)         - ->read method for sequential files.
seq_release (9)      - free the structures associated with sequential file.
setcap (8)           - set file capabilities
setfacl (1)          - set file access control lists
setfscreatecon (3)   - get or set the SELinux security context used for creat...
setfscreatecon_raw (3) - get or set the SELinux security context used for cre...
setfsgid (2)         - set group identity used for filesystem checks
setfsgid32 (2)       - set group identity used for filesystem checks
setfsuid (2)         - set user identity used for filesystem checks
setfsuid32 (2)       - set user identity used for filesystem checks
setgrent (3)         - get group file entry
setlock (8)          - runs another program with a file locked.
setmntent (3)        - get filesystem descriptor file entry
setpwent (3)         - get password file entry
setspent (3)         - get shadow password file entry
setttyent (3)        - get ttys file entry
setup (2)            - setup devices and filesystems, mount root filesystem
setutent (3)         - access utmp file entries
setutxent (3)        - access utmp file entries
sftp (1)             - secure file transfer program
sgetspent (3)        - get shadow password file entry
sgetspent_r (3)      - get shadow password file entry
shadow (5)           - shadowed password file
sheepfs (8)          - A pseudo file system exports both Sheepdog's internal ...
shred (1)            - overwrite a file to hide its contents, and optionally ...
shtool-fixperm (1)   - GNU shtool file permission fixing command
shtool-rotate (1)    - GNU shtool log file rotation
shtool-scpp (1)      - GNU shtool C source file pre-processor
shtool-version (1)   - GNU shtool maintain version information file
signalfd (2)         - create a file descriptor for accepting signals
signalfd4 (2)        - create a file descriptor for accepting signals
size86 (1)           - Examine object, archive or executable files
slapd.conf (5)       - configuration file for slapd, the stand-alone LDAP daemon
smartd.conf (5)      - SMART Disk Monitoring Daemon Configuration File
smb.conf (5)         - The configuration file for the Samba suite
smbcacls (1)         - Set or get ACLs on an NT file or directory names
smbget (1)           - wget-like utility for download files over SMB
smbgetrc (5)         - configuration file for smbget
smbpasswd (5)        - The Samba encrypted password file
smbspool (8)         - send a print file to an SMB printer
smew (1)             - search related messages from Mew's database file
snd_card_disconnect (9) - disconnect all APIs from the file-operations (user ...
snd_card_file_add (9) - add the file to the file list of the card
snd_card_file_remove (9) - remove the file from the file list
snd_register_device (9) - Register the ALSA device file for the card
sockfd_lookup (9)    - Go from a file number to its socket slot
sort (1)             - sort lines of text files
sort-dctrl (1)       - sort Debian control files
splice_from_pipe (9) - splice data from a pipe to a file
splice_from_pipe_feed (9) - feed available data from a pipe to a file
split (1)            - split a file into pieces
split-logfile (8)    - Split combined virtual hosts access log into one file ...
splitmail++ (1)      - split mailbox files prior to indexing
spufs (7)            - SPU filesystem
squiggle (1)         - browser for SVG files
ssh_config (5)       - OpenSSH SSH client configuration files
sshd_config (5)      - OpenSSH SSH daemon configuration file
SSL_CTX_set_default_passwd_cb (3ssl) - set passwd callback for encrypted PEM ...
SSL_CTX_set_default_passwd_cb_userdata (3ssl) - set passwd callback for encry...
SSL_CTX_use_certificate_chain_file (3ssl) - load certificate and key data
SSL_CTX_use_certificate_file (3ssl) - load certificate and key data
SSL_CTX_use_PrivateKey_file (3ssl) - load certificate and key data
SSL_CTX_use_RSAPrivateKey_file (3ssl) - load certificate and key data
SSL_get_fd (3ssl)    - get file descriptor linked to an SSL object
SSL_load_client_CA_file (3ssl) - load certificate names from file
SSL_set_fd (3ssl)    - connect the SSL object with a file descriptor
SSL_use_certificate_file (3ssl) - load certificate and key data
SSL_use_PrivateKey_file (3ssl) - load certificate and key data
SSL_use_RSAPrivateKey_file (3ssl) - load certificate and key data
stat (1)             - display file or file system status
stat (2)             - get file status
stat64 (2)           - get file status
statfs (2)           - get filesystem statistics
statfs64 (2)         - get filesystem statistics
statvfs (2)          - get filesystem statistics
statvfs (3)          - get filesystem statistics
stdio_ext (3)        - interfaces to stdio FILE structure
strings (1)          - print the strings of printable characters in files.
strip (1)            - Discard symbols from object files.
struct_sync_file (9) - sync file to export to the userspace
subgid (5)           - the subordinate gid file
subuid (5)           - the subordinate uid file
suffixes (7)         - list of file suffixes
sum (1)              - checksum and count the blocks in a file
svgpp (1)            - pretty-printer for SVG files
svndumpfilter (1)    - Filter a subversion repository 'dumpfile'.
svnserve.conf (5)    - Repository configuration file for svnserve
swapoff (2)          - start/stop swapping to file/device
swapoff (8)          - enable/disable devices and files for paging and swapping
swapon (2)           - start/stop swapping to file/device
swapon (8)           - enable/disable devices and files for paging and swapping
swish++.conf (5)     - SWISH++ configuration file format
swish++.index (5)    - SWISH++ index file format
switch_root (8)      - switch to another filesystem as the root of the mount ...
symlink (2)          - make a new name for a file
symlinkat (2)        - make a new name for a file
sync (1)             - flush file system buffers
sync_file_create (9) - creates a sync file
sync_file_range (2)  - sync a file segment with disk
sync_file_range2 (2) - sync a file segment with disk
sysctl.conf (5)      - sysctl preload/configuration file
sysfs (2)            - get filesystem type information
sysfs_add_file_to_group (9) - add an attribute file to a pre-existing group.
sysfs_chmod_file (9) - update the modified mode value on an object attribute.
sysfs_create_bin_file (9) - create binary file for object.
sysfs_create_file_ns (9) - create an attribute file for an object with custom ns
sysfs_remove_bin_file (9) - remove binary file for object.
sysfs_remove_file_from_group (9) - remove an attribute file from a group.
sysfs_remove_file_ns (9) - remove an object attribute with a custom ns tag
sysstat (5)          - sysstat configuration file.
systemd-delta (1)    - Find overridden configuration files
systemd-fsck (8)     - File system checker logic
systemd-fsck-root.service (8) - File system checker logic
systemd-fsck@.service (8) - File system checker logic
systemd-quotacheck (8) - File system quota checker logic
systemd-quotacheck.service (8) - File system quota checker logic
systemd-remount-fs (8) - Remount root and kernel file systems
systemd-remount-fs.service (8) - Remount root and kernel file systems
systemd-sleep.conf (5) - Suspend and hibernation configuration file
systemd-system.conf (5) - System and session service manager configuration file
systemd-tmpfiles (8) - Creates, deletes and cleans up volatile and temporary ...
systemd-tmpfiles-clean.service (8) - Creates, deletes and cleans up volatile ...
systemd-tmpfiles-clean.timer (8) - Creates, deletes and cleans up volatile an...
systemd-tmpfiles-setup-dev.service (8) - Creates, deletes and cleans up volat...
systemd-tmpfiles-setup.service (8) - Creates, deletes and cleans up volatile ...
systemd-user.conf (5) - System and session service manager configuration file
tac (1)              - concatenate and print files in reverse
tail (1)             - output the last part of files
tailf (1)            - follow the growth of a log file
TAP::Formatter::File (3perl) - Harness output delegate for file output
TAP::Formatter::File::Session (3perl) - Harness output delegate for file output
TAP::Parser::Iterator::Stream (3perl) - Iterator for filehandle-based TAP sou...
TAP::Parser::SourceHandler::File (3perl) - Stream TAP from a text file.
tee (1)              - read from standard input and write to standard output ...
tempfile (1)         - create a temporary file in a safe manner
tempnam (3)          - create a name for a temporary file
term (5)             - format of compiled term file.
test (1)             - check file types and compare values
testparm (1)         - check an smb.conf configuration file for internal corr...
Text::Diff (3pm)     - Perform diffs on files and record sets
thaw_bdev (9)        - - unlock filesystem
thaw_super (9)       - - unlock filesystem
Tie::File (3perl)    - Access the lines of a disk file via a Perl array
time.conf (5)        - configuration file for the pam_time module
timerfd_create (2)   - timers that notify via file descriptors
timerfd_gettime (2)  - timers that notify via file descriptors
timerfd_settime (2)  - timers that notify via file descriptors
tmpfile (3)          - create a temporary file
tmpfiles.d (5)       - Configuration for creation, deletion and cleaning of v...
tmpfs (5)            - variables that configure tmpfs filesystems mounted dur...
tmpnam (3)           - create a name for a temporary file
tmpnam_r (3)         - create a name for a temporary file
touch (1)            - change file timestamps
truncate (1)         - shrink or extend the size of a file to the specified size
truncate (2)         - truncate a file to a specified length
truncate64 (2)       - truncate a file to a specified length
truncate_setsize (9) - update inode and pagecache for a new file size
tty (1)              - print the file name of the terminal connected to stand...
ttyslot (3)          - find the slot of the current user's terminal in some file
tune2fs (8)          - adjust tunable filesystem parameters on ext2/ext3/ext4...
typedef_journal_t (9) - The journal_t maintains all of the journaling state i...
tzfile (5)           - timezone information
ucf (1)              - Update Configuration File: preserve user changes in co...
ucf.conf (5)         - site-wide configuration file for ucf
ucfr (1)             - Update Configuration File Registry: associate packages...
ulckpwdf (3)         - get shadow password file entry
umask (2)            - set file mode creation mask
umount (2)           - unmount filesystem
umount (8)           - unmount file systems
umount2 (2)          - unmount filesystem
uncompress (1)       - compress or expand files
ungetwc (3)          - push back a wide character onto a FILE stream
unlink (1)           - call the unlink function to remove the specified file
unlink (2)           - delete a name and possibly the file it refers to
unlinkat (2)         - delete a name and possibly the file it refers to
unlzma (1)           - Compress or decompress .xz and .lzma files
unmap_mapping_range (9) - unmap the portion of all mmaps in the specified add...
unregister_filesystem (9) - unregister a file system
unxz (1)             - Compress or decompress .xz and .lzma files
unzip (1)            - list, test and extract compressed files in a ZIP archive
update-catalog (8)   - create or update entry in SGML catalog file
update-dlocatedb (8) - generate text database of installed files for dlocate
update-initramfs.conf (5) - configuration file for update-initramfs
update-xmlcatalog (8) - maintain XML catalog files
updwtmp (3)          - append an entry to the wtmp file
updwtmpx (3)         - append an entry to the wtmp file
URI::file (3pm)      - URI that maps to local file names
user_clusters (5)    - File linking users to PostgreSQL clusters
userdel (8)          - delete a user account and related files
ustat (2)            - get filesystem statistics
utime (2)            - change file last access and modification times
utimensat (2)        - change file timestamps with nanosecond precision
utimes (2)           - change file last access and modification times
utmpdump (1)         - dump UTMP and WTMP files in raw format
utmpname (3)         - access utmp file entries
utmpxname (3)        - access utmp file entries
uudecode (1)         - decode an encoded file
uuencode (1)         - encode a file into email friendly text
uuencode (5)         - format of an encoded uuencode file
vcut (1)             - cuts Ogg Vorbis files
vdprintf (3)         - print to a file descriptor
vfs_cancel_lock (9)  - file byte range unblock lock
vfs_lock_file (9)    - file byte range lock
vfs_path_lookup (9)  - lookup a file path relative to a dentry-vfsmount pair
vfs_rename (9)       - rename a filesystem object
vfs_setlease (9)     - sets a lease on an open file
vfs_test_lock (9)    - test file byte range lock
vfs_unlink (9)       - unlink a filesystem object
vgmknodes (8)        - recreate volume group directory and logical volume spe...
vigr (8)             - edit the password, group, shadow-password or shadow-gr...
vimdiff (1)          - edit two, three or four versions of a file with Vim an...
vipw (8)             - edit the password, group, shadow-password or shadow-gr...
virtfs-proxy-helper (1) - QEMU 9p virtfs proxy filesystem helper
vmm.cfg (5)          - configuration file for vmm
vorbiscomment (1)    - List or edit comments in Ogg Vorbis files
wc (1)               - print newline, word, and byte counts for each file
wcmgr (1)            - Webalizer (DNS) Cache file Manager
webalizer (1)        - A web server log file analysis tool.
webazolver (1)       - A web server log file analysis tool.
whereis (1)          - locate the binary, source, and manual page files for a...
wndb (5WN)           - WordNet database files
wnintro (5WN)        - introduction to descriptions of WordNet file formats
write (2)            - write to a file descriptor
WWW::RobotRules::AnyDBM_File (3pm) - Persistent RobotRules
X11::Auth (3pm)      - Perl module to read X11 authority files
X11::Protocol::Connection::FileHandle (3pm) - Perl module base class for File...
X11::Protocol::Connection::INETFH (3pm) - Perl module for FileHandle-based TC...
X11::Protocol::Connection::UNIXFH (3pm) - Perl module for FileHandle-based Un...
x86_64-linux-gnu-addr2line (1) - convert addresses into file names and line n...
x86_64-linux-gnu-elfedit (1) - Update the ELF header of ELF files.
x86_64-linux-gnu-gprof (1) - display call graph profile data
x86_64-linux-gnu-nm (1) - list symbols from object files
x86_64-linux-gnu-objcopy (1) - copy and translate object files
x86_64-linux-gnu-objdump (1) - display information from object files.
x86_64-linux-gnu-readelf (1) - Displays information about ELF files.
x86_64-linux-gnu-strings (1) - print the strings of printable characters in f...
x86_64-linux-gnu-strip (1) - Discard symbols from object files.
xdg-mime (1)         - command line tool for querying information about file ...
xdg-open (1)         - opens a file or URL in the user's preferred application
xfs (5)              - layout and mount options for the XFS filesystem
xfs_admin (8)        - change parameters of an XFS filesystem
xfs_bmap (8)         - print block mapping for an XFS file
xfs_copy (8)         - copy the contents of an XFS filesystem
xfs_db (8)           - debug an XFS filesystem
xfs_estimate (8)     - estimate the space that an XFS filesystem will take
xfs_freeze (8)       - suspend access to an XFS filesystem
xfs_fsr (8)          - filesystem reorganizer for XFS
xfs_growfs (8)       - expand an XFS filesystem
xfs_info (8)         - expand an XFS filesystem
xfs_io (8)           - debug the I/O path of an XFS filesystem
xfs_logprint (8)     - print the log of an XFS filesystem
xfs_mdrestore (8)    - restores an XFS metadump image to a filesystem image
xfs_metadump (8)     - copy XFS filesystem metadata to a file
xfs_mkfile (8)       - create an XFS file
xfs_quota (8)        - manage use of quota on XFS filesystems
xfs_repair (8)       - repair an XFS filesystem
xkeyboard-config (7) - XKB data description files
xmlcatalog (1)       - Command line tool to parse and manipulate XML or SGML ...
xz (1)               - Compress or decompress .xz and .lzma files
xzcat (1)            - Compress or decompress .xz and .lzma files
xzcmp (1)            - compare compressed files
xzdiff (1)           - compare compressed files
xzegrep (1)          - search compressed files for a regular expression
xzfgrep (1)          - search compressed files for a regular expression
xzgrep (1)           - search compressed files for a regular expression
xzless (1)           - view xz or lzma compressed (text) files
xzmore (1)           - view xz or lzma compressed (text) files
YAML::Tiny (3pm)     - Read/Write YAML files with as little code as possible
zcat (1)             - compress or expand files
zcmp (1)             - compare compressed files
zdiff (1)            - compare compressed files
zegrep (1)           - search possibly compressed files for a regular expression
zfgrep (1)           - search possibly compressed files for a regular expression
zforce (1)           - force a '.gz' extension on all gzip files
zgrep (1)            - search possibly compressed files for a regular expression
zip (1)              - package and compress (archive) files
zipcloak (1)         - encrypt entries in a zipfile
zipdetails (1)       - display the internal structure of zip files
zipgrep (1)          - search files in a ZIP archive for lines matching a pat...
zipnote (1)          - write the comments in zipfile to stdout, edit comments...
zipsplit (1)         - split a zipfile into smaller zipfiles
zless (1)            - file perusal filter for crt viewing of compressed text
zmore (1)            - file perusal filter for crt viewing of compressed text
znew (1)             - recompress .Z files to .gz files