Parsing results of ps?

From: Marv (marv_at_stevens.com)
Date: 10/30/03 

Date: Thu, 30 Oct 2003 03:31:53 GMT

Hello,

I'm a perl beginner and having trouble with what would appear like a
simple task.

I need to capture PID number from each line into a variable while in a
loop. The help I need is how to get to split each line of the output
so that I get the PID number regardless of how many digits long it is.
The output of ps -x gives me the pid number in the first column,
however it seems to be right justified in this column as such:

 2193 ? S blahblah blah
26127 pts/0 S blahblah blah
 4513 ? S blahblah blah

So when I try to do a split using a space as the delimiter some of the
variables end up empty.

How could I do this so that I always end up with the PID number?

Thanks,
Marv

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