How Do I See Previous Processes in Linux?
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How do I find process history in Linux?

If your process logs such information, you can know the old PIDs like 7274. You can also find the PID in such a log record 24442. For future cases, you need to log such information if you are interested in finding it later.

How do I find old process ID in Linux?

You can find the PID of processes running on the system using the below nine command.

  1. pidof: pidof – find the process ID of a running program.
  2. pgrep: pgre – look up or signal processes based on name and other attributes.
  3. ps: ps – report a snapshot of the current processes.
  4. pstree: pstree – display a tree of processes.
Maya Lin-Takahashi

Maya Lin-Takahashi

Consumer Tech & Gadget Reviewer

Maya is a hardware enthusiast who tests and reviews smart home devices, smartphones, wearables, and audio gear. She focuses on practical consumer value and build quality.

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