how to debug .sh type script
Is there way to single step through each line of code and see the real values of the variables? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: how to debug .sh type script
echo $my $debugs
read a #(or whatever variable)
until you pressed the enter key (or sig), your script will wait
Samuel Martín Moro
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CamTrace S.A.S
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Nobody wants to say how this works.
Maybe nobody knows ...
Xorg.conf(5)
On Mon, May 31, 2010 at 9:59 AM, Aiza aiz...@comclark.com wrote:
Is there way to single step through each line of code and see the real
values of the variables?
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Re: how to debug .sh type script
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 31/05/2010 08:59:04, Aiza wrote: Is there way to single step through each line of code and see the real values of the variables? Not 'single step' as such -- what you can do is run with '-x' which prints each line as it is executed. That's either: sh -x scriptname or you can add it to the #! line in the script, or just stick 'set -x' somewhere in the script body. If you use the 'set -x' form, you can set it up to trace through just the interesting parts of your code. (Somewhat counter intuitively 'set - -x' or 'set -o xtrace' turns on trace mode; 'set +x' or 'set +o xtrace' turns it off) This doesn't give you a way of arbitrarily querying the value of any variable, but you will be able to see all variable assignments as part of the trace. There's also a '-v' flag which adds displaying input read by the shell as it executes. Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate JID: matt...@infracaninophile.co.uk Kent, CT11 9PW -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.14 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkwDb3EACgkQ8Mjk52CukIyoLwCfdTamyG/PnEgdbWEDlZwaW28B HCwAn2WhU6/GCLzamityi3YiW79OcjS9 =7vBz -END PGP SIGNATURE- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: how to debug .sh type script
On Monday 31 of May 2010 10:59:04 Aiza wrote: Is there way to single step through each line of code and see the real values of the variables? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org I'm not aware of a way to single step a script. But the old method of echo and exit is the way I use. I use echo to print the values and the line numbers that I want and exit to stop the execution of the script at a point I wish it to stop. Elias ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: how to debug .sh type script
On Mon, 31 May 2010 15:59:04 +0800 Aiza aiz...@comclark.com articulated: Is there way to single step through each line of code and see the real values of the variables? You did not indicate what language your script is written in. There are quite a few sites that have information for debugging a Bash script. http://bashdb.sourceforge.net/bashdb-man.html http://www.tldp.org/LDP/abs/html/debugging.html http://www.softpanorama.org/Scripting/Shellorama/bash_debugging.shtml http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_02_03.html There are lots of others. Just Google or Bing for it. -- Jerry freebsd.u...@seibercom.net Disclaimer: off-list followups get on-list replies or get ignored. Please do not ignore the Reply-To header. __ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
