BTRFS(8)                                   Btrfs Manual                                  BTRFS(8)



NAME
       btrfs - control a btrfs filesystem

SYNOPSIS
       btrfs <command> [<args>]

DESCRIPTION
       btrfs is used to control the filesystem and the files and directories stored. It is the
       tool to create or destroy a snapshot or a subvolume for the filesystem, to defrag a file
       or a directory, flush the data to the disk, to resize the filesystem, to scan the device.

       It is possible to abbreviate the commands unless the commands are ambiguous. For example:
       it is possible to run btrfs sub snaps instead of btrfs subvolume snapshot. But btrfs file
       s is not allowed, because file s may be interpreted both as filesystem show and as
       filesystem sync.

       If a command is terminated by --help, the detailed help is showed. If the passed command
       matches more commands, detailed help of all the matched commands is showed. For example
       btrfs dev --help shows the help of all device* commands.

COMMANDS
       subvolume
           Create/delete/list/manage btrfs subvolume.

           See btrfs-subvolume(8) for details.

       filesystem
           Manage a btrfs filesystem, including label setting/sync and so on.

           See btrfs-filesystem(8) for details.

       [filesystem] balance
           Balance btrfs filesystem chunks across single or several devices.

           See btrfs-balance(8) for details.

       device
           Manage devices managed by btrfs, including add/delete/scan and so on.

           See btrfs-device(8) for details.

       scrub
           Scrub a btrfs filesystem.

           See btrfs-scrub(8) for details.

       check
           Do off-line check on a btrfs filesystem.

           See btrfs-check(8) for details.

       rescue
           Try to rescue damaged btrfs filesystem.

           See btrfs-rescue(8) for details.

       restore
           Manage a btrfs filesystem, including label setting/sync and so on.

           See btrfs-restore(8) for details.

       inspect-internal
           Debug tools for developers/hackers.

           See btrfs-inspect-internal(8) for details.

       send
           Send subvolume data to stdout/file for backup and etc.

           See btrfs-send(8) for details.

       receive
           Receive subvolume data from stdin/file for restore and etc.

           See btrfs-receive(8) for details.

       quota
           Manage quota on btrfs filesystem like enabling/rescan and etc.

           See btrfs-quota(8) and btrfs-qgroup(8) for details.

       qgroup
           Manage quota group(qgroup) for btrfs filesystem.

           See btrfs-qgroup(8) for details.

       replace
           Replace btrfs devices.

           See btrfs-replace(8) for details.

EXIT STATUS
       btrfs returns a zero exit status if it succeeds. Non zero is returned in case of failure.

AVAILABILITY
       btrfs is part of btrfs-progs. Please refer to the btrfs wiki http://btrfs.wiki.kernel.org
       for further details.

SEE ALSO
       mkfs.btrfs(8), ionice(1), btrfs-subvolume(8), btrfs-filesystem(8), btrfs-balance(8),
       btrfs-device(8), btrfs-scrub(8), btrfs-check(8), btrfs-rescue(8), btrfs-restore(8),
       btrfs-inspect-internal(8), btrfs-send(8), btrfs-receive(8), btrfs-quota(8),
       btrfs-qgroup(8), btrfs-replace(8),



Btrfs v3.17                                 11/22/2014                                   BTRFS(8)