Linux command to check if a shell script is running or not

What is the linux command to find if a process say aa.sh is running or not. ps command does not seem to work and it does not show the shell script names.

Please advise.

How do I know if shell script is running?

Create PID file sh. pid # Add check for existence of mypidfile if [ -f $mypidfile ]; then echo "script is already running" exit fi # Ensure PID file is removed on program exit. trap "rm -f -- '$mypidfile'" EXIT # Create a file with current PID to indicate that process is running.

How do I know if a script is running in the background Linux?

You can list running processes using the ps command (ps means process status). The ps command displays your currently running processes in real-time.

How can I test shell script without running it?

Use the "-n" option ... bash will check the syntactical validity of a script without running it.

Check this