How to debug bash script?
There several different ways, i.e.:
Run your script with the -x option
bash -x yourscript.sh
Add
set -x
in a new line at the beginning of your scriptfile after the Shebang#!/bin/bash
and before the beginning of your script,set -v
would display the shell input lines,set -x
displays the executed commands and argumentsreplace the shebang of your script file with
#!/bin/bash -xv
Yes, there is Bash Debugger Project.
You can also use set -x
and set -v
at execution. More info:
http://www.linuxtopia.org/online_books/advanced_bash_scripting_guide/debugging.html http://www.cyberciti.biz/tips/debugging-shell-script.html
Good luck!
Nowadays, there is the Visual Studio Code Bash Debug extension. It has 'Step in/out/over' and can show the value of each variable.