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 displayed 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@telemetry-investments.com.

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

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