REVOUTPUT(3am) GNU Awk Extension Modules REVOUTPUT(3am)
NAME
revoutput - Reverse output strings sample extension
SYNOPSIS
@load "revoutput"
BEGIN { REVOUT = 1 } # Reverse all output strings
DESCRIPTION
The revoutput extension adds a simple output wrapper that reverses the
characters in each output line. It's main purpose is to show how to
write an output wrapper, although it may be mildly amusing for the un-
wary.
EXAMPLE
@load "revoutput"
BEGIN {
REVOUT = 1
print "hello, world" > "/dev/stdout"
}
The output from this program is:
dlrow ,olleh
BUGS
This extension does not affect the default standard output.
SEE ALSO
GAWK: Effective AWK Programming, filefuncs(3am), fnmatch(3am),
fork(3am), inplace(3am), ordchr(3am), readdir(3am), readfile(3am),
rwarray(3am), time(3am).
AUTHOR
Arnold Robbins, arnold@skeeve.com.
COPYING PERMISSIONS
Copyright (C) 2012, 2013, 2018, 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 Feb 21 2018 REVOUTPUT(3am)