Comments on: HowTo: Debug a Shell Script Under Linux or UNIX

By: achyut

achyut — Wed, 06 Jul 2011 12:27:21 +0000

Excellent Topic

By: SS Senthil Kumar

SS Senthil Kumar — Tue, 22 Mar 2011 17:03:37 +0000

I am going to move from HP-Unix to Redhat Linux server. I have many bash shell programs in HP-Unix. Will they need change when i move to Linux (RHEL)? Kindly advice.

By: Vivek Gite

Vivek Gite — Thu, 20 May 2010 20:17:00 +0000

Philippe,

Thanks for your feedback. The post has been updated.

By: Philippe Petrinko

Philippe Petrinko — Wed, 19 May 2010 17:06:40 +0000

Hi Vivek,
if this is not required, would you consider cleaning code – mainly because that may confuse novice programmers and may induce bugs … Thanks in advance! Nice topic, one more!

By: Vivek Gite

Vivek Gite — Thu, 28 Jan 2010 04:36:11 +0000

Yes, it is not required.

By: psc

psc — Wed, 27 Jan 2010 22:01:20 +0000

[ "$_DEBUG" == "on" ] && $@ || : Why are you using last || operator?

By: dekkard

dekkard — Mon, 11 Jan 2010 06:37:11 +0000

very nice, thanx

By: yura

yura — Sat, 27 Dec 2008 20:52:02 +0000

http://bashdb.sourceforge.net/

By: mosjin

mosjin — Tue, 20 May 2008 07:37:11 +0000

It’s a good idea. Thanks!

By: thievm

thievm — Thu, 08 May 2008 11:33:58 +0000

thanks,it is good idea

By: sartan

sartan — Tue, 19 Feb 2008 00:59:42 +0000

I liked this debug method and implemented it in a simple script I wrote :) It really does make for much cleaner code than what I have been doing before. Thanks mate

By: nixcraft

nixcraft — Thu, 01 Feb 2007 22:00:41 +0000

_ranger_,

Good idea however you may have to modify script little to check if _DEBUG is defined or not.

Appreciate your post.

By: _ranger_

_ranger_ — Wed, 31 Jan 2007 15:30:57 +0000

For running under “set -x” or “set +x”, why not just run it as:

bash -x ./script.sh

Also, instead of having _DEBUG in your script, just export it from your shell:

$ export _DEBUG=on

Now, you have to make absolutely no changes to enable or disable all debugging.