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.

       For  backwards  compatibility, the variable will also check INPLACE_SUFFIX (in the awk namespace) for the
       suffix to use if inplace::suffix is not set.

       One can disable inplace editing selectively by placing inplace::enable=0 on the  command  line  prior  to
       files  that  should be processed normally.  One can reenable inplace editing by placing inplace::enable=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, 2018, 2019, 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                           Jun 26 2018                                      INPLACE(3am)