Is there a way to identify which process turns into Zombie process One of the ubuntu server has 82 zombie processes. All processes shows '[sh] defunct' as process command. Is there a way to find out which process is becoming a zombie process? I tried checking the `/proc/PID/` directory to get some clue about zombie process but all files are empty. How to find who let this process as zombie.. . Is there any other way to find it out? Updated/Solved: Made the question clearer, and Answered my own question as suggested by andcoz.

One of the reasons for Zombie process are 'parent process' not waiting for the 'child process' - Executed `ps -l` which shows the parent process ID, with that you can find exactly which process is responsible for zombies in the machine.