REVTWOWAY

Section: GNU Awk Extension Modules (3am)
Updated: Feb 21 2018
Page Index

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 mildly amusing.

AUTHOR

Arnold Robbins, arnold@skeeve.com.

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