Comments on: awk one-liners

By: anusha

anusha — Thu, 29 Dec 2011 08:58:21 +0000

very very Thanks.these examples are really helpful to me

By: kcoder24

kcoder24 — Thu, 01 Sep 2011 16:01:43 +0000

Hi, good collection of one-liners. Eric Pement has already awk1line.txt and Peteris Krumis explain them in a very detailed way. So take a look here
http://www.catonmat.net/series/awk-one-liners-explained
An easy tip, the default action for a pattern is print $0, so you can make shorter several one-liners, e.g. for print all lines
awk ‘{print 0}’ file_name ==> awk ’1′ file_name

By: Andrew

Andrew — Tue, 09 Nov 2010 02:29:00 +0000

Excellent list of awk commands. This is inspiring for a beginner like myself.

By: unixshell

unixshell — Thu, 18 Mar 2010 22:10:50 +0000

Good spot!

By: fmpdmb

fmpdmb — Thu, 18 Mar 2010 18:29:59 +0000

Minor corrections:

List all files names whose file size greater than zero.

ls –al |awk ‘$5 > 0 {print $8}’

List all files whose file size equal to 512bytes.

ls –al |awk ‘$5 == 512 {print $8}’

By: unixshell

unixshell — Thu, 02 Apr 2009 00:22:55 +0000

I’ve also removed the leading “$” symbols, for better copy/paste

By: unixshell

unixshell — Thu, 02 Apr 2009 00:13:28 +0000

You are right; I hadn’t noticed that, thanks. I’ll fix it.

By: Paul Mohr

Paul Mohr — Thu, 02 Apr 2009 00:11:49 +0000

It is very interesting stuff. I ran into something very odd while trying out your examples. It seems that the CSS for section code uses a font-family Courier New. What is odd is that all my browsers display right slanting single quotes with a different font in the CSS code{} section. (gotta love Firebug) With the font that is selected there, I get some left slanting quotes. The issue, as you surely know, is that left slanters have a very different meaning in the shell. Nice blog, thank you for the information.