Hi Aaron!
On Wed, 11 Oct 2000, Aaron Schrab wrote:
> At 09:23 +0930 12 Oct 2000, Brian Salter-Duke <[EMAIL PROTECTED]> wrote:
> > On Wed, Oct 11, 2000 at 04:38:31PM -0700, Bruce J.A. Nourish wrote:
> > > > if ps -U $LOGNAME | grep realmutt > /dev/null
> > >
> > > Be careful about using grep to search the output of ps. For example
> > >
> > > $ ps ax | grep lemming
> > > 16004 tty1 S 0:00 grep lemming
> > >
> > > Y'see? Grep makes a match on its own process.
> >
> > It works OK on AIX 3.2.5 ps. If you add the -f flag it finds the grep
> > line, but it does'nt without it.
> >
> > OK, so maybe my script does'nt work on all systems, but it is worth
> > playing with to see if some set of ps flags works as required.
>
> Or you could just make a minor modification to the grep pattern:
>
> ps -U $LOGNAME | grep 'r[e]almutt' > /dev/null
I usually use ps <some params> | grep <exe name> | grep -v grep ...
yours,
peter
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