INPLACE(3am)                        GNU Awk Extension Modules                        INPLACE(3am)



NAME
       inplace - emulate sed/perl/ruby in-place editing

SYNOPSIS
       @load "inplace"

       # Please set INPLACE_SUFFIX to make a backup copy.  For example, you may
       # want to set INPLACE_SUFFIX to .bak on the command line or in a BEGIN rule.

       BEGINFILE {
           inplace_begin(FILENAME, INPLACE_SUFFIX)
       }

       ENDFILE {
           inplace_end(FILENAME, INPLACE_SUFFIX)
       }

DESCRIPTION
       The  inplace  extension adds two functions named inplace_begin() and inplace_end().  These
       functions are meant to be invoked from the inplace.awk wrapper (whose  contents  are  dis‐
       played above) which is installed when gawk is.

       By  default,  each  named file on the command line is replaced with a new file of the same
       name whose contents are the results of running the AWK program.  If the user  supplies  an
       AWK variable named INPLACE_SUFFIX in a BEGIN rule or on the command line, then the inplace
       extension concatenates that suffix onto the original filename and uses  the  result  as  a
       filename for renaming the original.

EXAMPLE
       gawk -i inplace 'script' files ...
       gawk -i inplace -f scriptfile files ...

SEE ALSO
       GAWK:  Effective  AWK  Programming,  filefuncs(3am), fnmatch(3am), fork(3am), ordchr(3am),
       readdir(3am), readfile(3am), revoutput(3am), rwarray(3am).

AUTHOR
       Andrew Schorr, schorr AT telemetry-investments.com.

COPYING PERMISSIONS
       Copyright © 2012, 2013, Free Software Foundation, Inc.

       Permission is granted to make and distribute verbatim copies of this manual page  provided
       the copyright notice and this permission notice are preserved on all copies.

       Permission  is  granted to copy and distribute modified versions of this manual page under
       the conditions for verbatim copying, provided that the entire resulting  derived  work  is
       distributed under the terms of a permission notice identical to this one.

       Permission is granted to copy and distribute translations of this manual page into another
       language, under the above conditions for modified versions, except  that  this  permission
       notice may be stated in a translation approved by the Foundation.



Free Software Foundation                   Jan 15 2013                               INPLACE(3am)