inplace (3am)

@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)
}

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. \# .SH NOTES \# .SH BUGS

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, [email protected].

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