What is the significance of the pid and ppid

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Problem

1. What is the significance of the PID and PPID? Without using ps, how do you find out the PID of your login shell?

2. How do you display all processes running on your system?

3. Which programs are executed by spawning a shell? What does the second shell do?

4. Name some commands that don't require a separate process.

5. Name the two system calls required to run a program.

Reference no: EM131876582

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