cmd = "/magic/mirror"
print "hello, world" |& cmd
cmd |& getline result
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 pro-
gram. It's main purpose is to show how to write a two-way extension,
although it may also be mildy amusing.
GAWK: Effective AWK Programming, filefuncs(3am), fnmatch(3am),
fork(3am), inplace(3am), ordchr(3am), readdir(3am), readfile(3am),
revoutput(3am), rwarray(3am), time(3am).
Arnold Robbins, firstname.lastname@example.org.
Copyright (C) 2012, 2013, 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 man-
ual page into another language, under the above conditions for modified
versions, except that this permission notice may be stated in a trans-
lation approved by the Foundation.
Free Software Foundation Jan 15 2013 REVTWOWAY(3am)
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