Listing all cron related processes 1

[Chig]

I want to list the processes spawned by cron from within a shell script. The following writes the current cron PID to a file.
ps -ef | grep -v grep | grep cron | awk '{print $2}' > $CRON

How can I then grep for the PID contained in the file?

Thanks,

 

[tchatzi]

I think that $2 is the TT and not the PID


``The wise man doesn't give the right answers,
he poses the right questions.''
TIMTOWTDI

 

[p5wizard]

No need for a temp file...

cronpid=$(ps -ef | grep -v grep | grep cron | awk '{print $2}')
ps -ef | awk '{if ($3=='${cronpid}') print}'

Notice that the awk quoted program is "interrupted" after the "==" of the if test and continued at the ")" of the if test in order for the shell to substitute the variable cronpid...

You have to find out which ps fields contain the parent process id, on AIX it is the 3rd one on a ps -ef listing, so I check for $3 in awk.

HTH,

p5wizard