What is a PID number?

 
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Operating Systems Linux Red Hat What is a PID number?
# 1  
Old 04-17-2011
What is a PID number?

What is a PID number?
# 2  
Old 04-17-2011
Each time a process is created it gets its own unique number to refer to it by. That's a Process ID, or "PID" for short.
# 3  
Old 04-17-2011
Thank you!!.
And Why are these numbers useful when you run processes in the background?
Please?
# 4  
Old 04-17-2011
So you know which jobs are running in the background, should you need to do something with them.

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