inplace - emulate sed/perl/ruby in-place editing
gawk -i inplace ...
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.
gawk -i inplace 'script' files ... gawk -i inplace -f scriptfile files ...
GAWK: Effective AWK Programming, filefuncs(3am), fnmatch(3am), fork(3am), ordchr(3am), readdir(3am), readfile(3am), revoutput(3am), rwarray(3am).
Andrew Schorr, firstname.lastname@example.org.
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