Unix Programming - How to know PID from perl program

Author

How to know PID from perl program

saurabhlamgora@gmail.com

2005-12-22, 7:50 am

I want to know PID of external program from PERL script.

Victor Wagner

2005-12-22, 7:50 am

saurabhlamgora@gmail.com wrote:
: I want to know PID of external program from PERL script.

Which external program?

One you've spawned using open PROGRAM,"|program" or completely
unrelated?

If first, you can do following

$pid = open(PROGRAM,"|-")
die $! if (!defined($pid));
exec program if $pid == 0;

Now, you have program connected to your filehandle and its pid in the
variable $pid.

If second, you should look to Proc::ProcessTable module on CPAN.

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