This works for me (FreeBSD - it is not portable):

$process = 224;
@a = `ps -p $process`; 
@b=split(/\s+/,$a[1]); 
print $b[4];

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In reply to Re: Can I see how long a process has been running? by fglock
in thread Can I see how long a process has been running? by soffen

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