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Functions

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
24
runs a bash script in debugging mode

Alternatives

There is 1 alternative - vote for the best!

Terminal - Alternatives
bash -x SCRIPT
2009-03-13 00:09:07
User: jcalvert
Functions: bash
3

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

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
3

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.

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 287 weeks and 2 days ago

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

Comment by hellspawn 287 weeks and 2 days ago

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

Comment by nottings 287 weeks and 1 day ago

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

Comment by mccalni 285 weeks 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 256 weeks and 2 days ago

see

http://www.davidpashley.com/articles/writing-robust-shell-scripts.html

for tips for safer, more robust coding

Comment by nottings 197 weeks and 2 days ago

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

set -x; ls; ps; set +x
Comment by 0xFF 69 weeks and 5 days ago

Your point of view

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