Orphan processes are those processes that are still running even though their parent process has terminated or finished. A process can be orphaned intentionally or unintentionally. An intentionally orphaned process runs in the background without any manual support.

Where is orphan process in Linux?

It’s very easy to spot a Orphan process. Orphan process is a user process, which is having init (process id – 1) as parent. You can use this command in linux to find the Orphan processes. This will show you all the orphan processes running in your system.

What happens to an orphan process?

An orphan process is a running process whose parent process has finished or terminated. In a Unix-like operating system any orphaned process will be immediately adopted by the special init system process. This operation is called re-parenting and occurs automatically.