This file documents awk, a program that you can use to select
particular records in a file and perform operations upon them.
Copyright © 1989, 1991, 1992, 1993, 1996–2005, 2007, 2009–2024
Free Software Foundation, Inc.
This is Edition 5.3 of GAWK: Effective AWK Programming: A User’s Guide for GNU Awk, for the 5.3.1 (or later) version of the GNU implementation of AWK.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with the Invariant Sections being “GNU General Public License”, with the Front-Cover Texts being “A GNU Manual”, and with the Back-Cover Texts as in (a) below. A copy of the license is included in the section entitled “GNU Free Documentation License”.
awk Language
awk
awk and gawk
awkgawk Uses
gawk’s Exit Statusgawk Is Splitting Recordsgetline
getline with No Argumentsgetline into a Variablegetline from a Filegetline into a Variable from a Filegetline from a Pipegetline into a Variable from a Pipegetline from a Coprocessgetline into a Variable from a Coprocessgetlinegetline Variantsprint Statementprint Statement Examplesprintprintf Statements for Fancier Printing
print and printfgawk
awk
awk
awk Functions
awk Programs
awk Programs
awk with gawk
gawk
gawk for Network Programmingawk Programsgawk
awk Programs
gawk
gawk
gawk
gawkgawk
ERRNOgawk Finds Extensionsgawk Distribution
fnmatch()fork(), wait(), and waitpid()ord() and chr()gawkextlib Projectawk Language
awkawkgawk Not in POSIX awkgawk Featuresgawkgawk