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runs a bash script in debugging mode

Terminal - runs a bash script in debugging mode
bash -x ./post_to_commandlinefu.sh
2009-02-25 19:10:21
User: nottings
Functions: bash
runs a bash script in debugging mode


There are 2 alternatives - vote for the best!

Terminal - Alternatives
bash -x script.sh 2> log
bash -x test.sh 2>&1 | tee out.test
2009-09-03 17:10:44
User: arcege
Functions: bash tee

Sends both stdout and stderr to the pipe which captures the data in the file 'out.test' and sends to stdout of tee (likely /dev/tty unless redirected). Works on Bourne, Korn and Bash shells.

bash -x SCRIPT
2009-03-13 00:09:07
User: jcalvert
Functions: bash

Display commands and their arguments as they are executed. Useful for debugging shell scripts.

Know a better way?

If you can do better, submit your command here.

What others think

just running set -x first accomplishes the same thing

or, add set -x within your script at the point you want to turn debugging on

Comment by nottings 473 weeks ago

Also debugging can be turned on at the top of the script when declaring the shell type: #!/bin/bash -x

Comment by hellspawn 473 weeks ago

thanks hellspawn! didn't know that, but it makes sense.

Comment by nottings 472 weeks and 6 days ago

Thanks chaps. Made a lot of people at my place very happy.

Comment by mccalni 470 weeks and 5 days ago

How is it debugging? Does is it just more verbose?

It would be cool if there was a "safe-mode" where it blocks all writes to devices.

Comment by matthewbauer 442 weeks ago



for tips for safer, more robust coding

Comment by nottings 383 weeks ago

Inside script "set -x" turns on debugging. "set +x" turns off debugging. Bash example:

set -x; ls; ps; set +x
Comment by 0xFF 255 weeks and 3 days ago

Your point of view

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