NAME¶
revtwoway - Reverse strings sample two-way processor extension
SYNOPSIS¶
@load "revtwoway"
BEGIN {
cmd = "/magic/mirror"
print "hello, world" |& cmd
cmd |& getline result
print result
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 mildy 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,
arnold@skeeve.com.
COPYING PERMISSIONS¶
Copyright © 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 manual page
into another language, under the above conditions for modified versions,
except that this permission notice may be stated in a translation approved by
the Foundation.