Meaning of PID, PPID and TGID [closed]

问题:

What does the Linux kernel acronyms PID, PPID, TGID stand for?

I stumbled upon them at strace-pids.

回答1:

• PID: Process Id
• PPID: Parent Process Id (the one which launched this PID)
• TGID: Thread Group Id

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