NAME

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

SYNOPSIS

       gawk -i inplace ...

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  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.

       One can disable inplace editing selectively by placing inplace=0 on the command line prior
       to files that should be processed normally.  One can reenable inplace editing  by  placing
       inplace=1 prior to files that should be subject to inplace editing.

BUGS

       While  the  extension  does  attempt  to  preserve  ownership and permissions, it makes no
       attempt to copy the ACLs from the original file.

       If the program dies prematurely, as might happen if an unhandled  signal  is  received,  a
       temporary file may be left behind.

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@telemetry-investments.com.

COPYING PERMISSIONS

       Copyright © 2012, 2013, 2015 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.