Questions for tomorrow

[Marcos Valdebenito]

Could somebody please post the answers for the quizz tomorrow?
thanks

[Michael Wicherski]

1. What command shows a list of the processes running

ps (use ps -l or ps -ef for more information about processes)

2. Name four states a process can be in

active, waiting, orphan, zombie

3. What is the difference between fork and exec system calls.

fork:

makes a duplicate copy of the parent process; creating the child process which has a different PID than parent

exec:
overlays child process with instructions of command and executes


simple terms!

fork: clones parent into a child process with new pid
exec: executes the process/commands

[Rich Simms]

One little change ... for Q2) states should be: S=Sleeping, R=Running, T=Stopped, Z=Zombie

- Rich

[Michael Wicherski]

[quote="Rich Simms"]One little change ... for Q2) states should be: S=Sleeping, R=Running, T=Stopped, Z=Zombie

- Rich[/quote]

k, digested!

[Marcos Valdebenito]

Thanks