On Mon, 31 Jul 2006, David wrote:
> pid=`/bin/ps -e | grep process_name | grep -v mon | grep -v grep | sed
> -e 's/^ *//' -e 's/ .*//' | head -1`
There is a possibility that the return is empty (so the variable named
"pid" does not have a value).
> if [ "X$pid" != "X" ]
So check here.
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