> I am running an EigerStein-2beta LRP and I want to check if the pppd > deamon is still running. > > I would have done something like: > > if [ ps ax | grep -v grep | grep -q /usr/sbin/pppd ] > > But... > > grep doesn't do "-v" or (I think) "-q". > > This must be simple, could an expert out there help me please?
The "grep" provided with many LEAF/LRP verisons is actually a shell-script wrapper that uses sed. Typically, no switches are supported, and no status is returned based on 'found' or 'not found'. Some newer distributions use the busybox grep function, which should support the switches you want to use. As David pointed out, you can generally use sed instead of grep to do what you want, but if your system doesn't have the busybox grep, you probably don't have the wc function either... You can generally replace 'wc -l' with sed -n '$=', although you won't get a zero output if there are no lines. You might also want to do something like: ps ax | sed -n '/sed/d;\:/usr/sbin/pppd:p' The single sed command first deletes any lines containing 'sed', then prints any lines containing '/usr/sbin/pppd'. You could simply test the output of this for non-zero length to see if pppd is running: if [ -n "`ps ax | sed -n '/sed/d;\:/usr/sbin/pppd:p'`" ] ... Charles Steinkuehler http://lrp.steinkuehler.net http://c0wz.steinkuehler.net (lrp.c0wz.com mirror) _______________________________________________ Leaf-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/leaf-user
