According to Michael Trausch: While burning my CPU.
>
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> Hmmm, I hadn't realized that the pipes in UNIX worked like that... But,
> that explains why when I do this:
>
> $ ps ax | grep pine
>
> I get this:
>
> 1525 1 S 0:05 pine
> 1574 2 S 0:00 grep pine
>
> as output. :-) How interesting.
Even more intersting is;
ps ax | grep pine | grep -v grep | grep -v ps | awk '{ print $1 }'
Which will return the PID (process number) of pine. So say for instance you
want to kill processes automaticly, you could just do, (in a script)
PID=`ps ax | grep pine | grep -v grep | grep -v ps | awk '{ print $1 }'`
kill $PID
Or check that a process is running if so kill it.
RUNNING=`ps ax ./net | wc -l`
PID=`ps ax ./net | awk '{ print $1}'`
if [ $RUNNING -gt 0 ]; then
kill -9 $1
fi
If you cant see what that is let me know, i wil explain.
>
> - Mike
>
> =====================================================================
> Michael B. Trausch [EMAIL PROTECTED]
> V: (419) 838-8104 F: (815) 846-9374
>
> "Curiosity is the very basis of education and if you tell me that
> curiosity killed the cat, I say only the cat died nobly."
> - Arnold Edinborough
>
> If you do not have my public PGP key, you are encouraged to obtain it
> from my website at http://www.wcnet.org/~mtrausch/mt_pgp_key.gz. You
> need to have PGP 5.0i or newer to use the key.
> =====================================================================
>
> On Sat, 20 Feb 1999, Raider wrote:
>
> > On Sat, 20 Feb 1999, Michael Trausch wrote:
> > > I'll tell ya, as far as the CL is concerned, I used the DOS CL for a long
> > > time (about seven years) as my primary computer access. And even then, I
> > > didn't know all there was... example: pipes. In DOS, there was really
> > > only one use for a pipe:
> > > A>TYPE FILENAME.EXT | MORE <ENTER>
> > > You couldn't even do something like this:
> > > A>TYPE FILENAME.EXT | PRINT <ENTER>
> >
> > That's because a dos pipe isn't a 'real' pipe. Part of it's
> > limitation is imposed by the fact that dos isn't multitasking. So a real
> > pipe would launch the first command, than the second and so on without
> > waiting for the previous command to end. Than it will connect the output
> > of the first with the imput of the second and so on. And this will be
> > done in real time. The sad part for m$ users is although dos7 is somehow
> > multitasking when run in a window this feature wasn't corrected.
> >
> > Raider
> > --
> > ``Liberate tu-temet ex inferis''
> >
> >
>
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> =1+JD
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--
Regards Richard.
[EMAIL PROTECTED]
