NAME
revtwoway - Reverse strings sample two-way processor extension
SYNOPSIS
@load "revtwoway"
BEGIN {
\n
cmd = "/magic/mirror"
\n
print "hello, world" |& cmd
\n
cmd |& getline result
\n
print result
\n
close(cmd)
}DESCRIPTION
The revtwoway extension adds a simple two-way processor that reverses the characters in each line sent to it for reading back by the AWK program. It's main purpose is to show how to write a two-way extension, although it may also be mildly amusing.
SEE ALSO
GAWK: Effective AWK Programming, filefuncs(3am), fnmatch(3am), fork(3am), inplace(3am), ordchr(3am), readdir(3am), readfile(3am), revoutput(3am), rwarray(3am), time(3am).
AUTHOR
Arnold Robbins, [email protected].
COPYING PERMISSIONS
Copyright © 2012, 2013, 2018, Free Software Foundation, Inc.
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