Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!tut.cis.ohio-state.edu!ucbvax!hplabs!hpda!hpwala!hpwarcz.wal.hp.com!timr
From: timr@hpwarcz.wal.hp.com (Tim Rice)
Newsgroups: comp.unix.shell
Subject: Killing process (ksh) was Killing process w/o number (csh)
Message-ID: <2059@hpwala.wal.hp.com>
Date: 14 May 91 13:51:59 GMT
References: <1991Apr18.210847.22260@en.ecn.purdue.edu> <3209@mtecv2.mty.itesm.mx> <+-A_7A#@warwick.ac.uk> <1991May2.095709.25594@ukpoit.co.uk>
Sender: netnews@hpwala.wal.hp.com
Reply-To: timr@hpwarcz.wal.hp.com (Tim Rice)
Organization: Hewlett-Packard Laboratories
Lines: 72

I have a ksh script I've been toying with that'll kill a named set of
processes.
In my case it'll be built up into a startup script but others may want to
modify it to pass in the process name from the command line.

I've attached it and was wondering if anyone has any easier/better ways
of doing
this?

-Tim

************************************************************************
***********
cut here
#!/bin/ksh
#
# Script to kill all named processes in pass function

# Usage:  killem [-signumber]

#
# pass() --
#    get list of processes to kill during the pass.
# 
function pass
{
    pids=`/bin/ps -ef`

    for pid in $pids; do 
	case $pid in
	  xrn|xcalc)
	    pidk=`/bin/ps -ef | grep $pid | /bin/sed            \
		-e '/^[ ]* .* .*grep/d'                         \
	 	-e 's/^[ ]*[^ ]\{1,8\}[ ]*\([0-9]\{1,5\}\).*/\1/'`
	    echo $pidk
	    ;;
	  *)
	    ;;
	esac
    done
}

#
# Get the signal number specified [if any, defaults to -9]
#
signo="${1#-}"
signo=${signo:-9}

if [ $# -gt 1 -o $signo -lt 0 -o $signo -gt 31 ]; then
    echo "Usage: killem [ -signo ]" >&2
    exit 2
fi

#
# If no signal was specified, use signal 15 to let things die
# gracefully before we send the real signal.
# We sleep for a while too, to give everyone a chance to die.
#
if [ $# -eq 0 ]; then
    kill -15 `pass` >/dev/null 2>&1
    sleep 3
fi

#
# Now kill with the real signal.  We warn with the "second pass"
# processes with a SIGTERM before actually killing them with SIGKILL.
# We sleep for a while too, to give everyone a chance to die.
#
kill -$signo `pass` >/dev/null 2>&1
sleep 3

exit 0