determine pid from ps -ef | grep something

new2ss · #1 (**permalink**) 09-25-2007

Hi all,

i have a script called a.sh and within a.sh it calls b.sh.

when i do a ps -ef | grep a.sh, i get two sets of number

user_test 4225 3250 0 10:31 pts/1 00:00:00 a.sh

when i do a ps -ef | grep b.sh, i get two sets of number

user_test 4269 4225 22 10:31 pts/1 00:00:45 b.sh

why are there there two sets of numbers? which is the pid of a.sh and b.sh respectively?

porter · #2 (**permalink**) 09-25-2007

From the listing the first number is the process id, the second number is that processes' parent.

new2ss · #3 (**permalink**) 09-25-2007

thanks porter.

NIMISH AGARWAL · #4 (**permalink**) 09-25-2007

user_test 4225 3250 0 10:31 pts/1 00:00:00 a.sh
UID PID PPID C STIME TTY TIME cmd

grial · #5 (**permalink**) 09-25-2007

Very easy:

Code:

man ps

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