:
##########################################################################
# Shellscript:	killn - kill process by name
# Version    :	0.6 (beta)
# Author     :	Heiner Steven (heiner.steven@odn.de)
# Date       :	29.03.95
# SCCS-Id.   :	$Id: killn,v 1.1.1.1 1999/06/15 19:29:05 heiner Exp $
##########################################################################
# Notes
#	This script is tailored to the BSD (SunOs 4.1.3) ps command.
# Changes
# 05.02.96 stv	Test "ps" arguments (0.5)
# 14.02.96 stv	Handle signal number (0.6)
##########################################################################

PN=`basename $0`			# program name
VER='0.6 (beta)'

# Grace period to wait after "kill" for process to terminate
Grace=3

if ps -ax >/dev/null 2>&1
then
    PsDefault=ax			# Arguments to "ps"
    PIDCol=1				# Column number of PID
else
    PsDefault=ef
    PIDCol=2
fi

Usage () {
    echo "$PN - kill process by name, $VER (hs '95)
usage: $PN [-signal] [-psargs] name [name ...]
    -signal:	signal number (default is first 15, then 9)
    -psargs:	arguments to the 'ps'-command

name is any string matching the 'ps' output. There is no way to
kill a command named $PN.

The default ps command is
	ps -$PsDefault." >&2
    exit 1
}

Msg ()	{ echo "$PN: $*" >&2; }
Fatal () { Msg "$@"; exit 1; }

# Collect Parameters for ps
while [ $# -gt 0 ]
do
    case "$1" in
	--)	shift; break;;
	-[1-9]|-[1-3][0-9])		# Signal number
		Sig=`expr "$1" : '-\(.*\)'`
		;;
	-h)	Usage;;
	# Special Handling for BSD ps:
	-u)	;;
	-t)	PsOpt="${PsOpt}t$2";;
	-*)	PsOpt="${PsOpt}`echo "$1" | sed 's:^-::'`";;
	*)	break;;			# First process name
    esac
    shift
done

[ $# -lt 1 ] && Usage

: ${PsOpt:=$PsDefault}			# Default for ps
PsOpt="-${PsOpt}"			# Show real command name

# Bring process names in a form suitable for awk:
#	"one two tree" -> "[o]ne|[t]wo|[t]hree"
# The square brackerts assert that awk does not match itself.
Search=
for i
do Search="${Search:+$Search|}`echo "$i" | sed -e 's:^\(.\):\[\1\]:'`"
done

PIDS=`ps "$PsOpt" |
	awk '($0 ~ /'"$Search"'/ && $0 !~ /'"$PN"'/) {print $'$PIDCol'}'`

[ -z "$PIDS" ] && Fatal "no matching processes found"
Msg ${Sig:+signal $Sig, }pids: $PIDS

if expr "$Sig" + 0 > /dev/null 2>&1
then
    # Signal explicitely given: don't send SIGKILL
    echo $PIDS | xargs kill -"$Sig"
else
    (echo $PIDS | xargs kill
    sleep ${Grace:-1}
    echo $PIDS | xargs kill -9 > /dev/null 2>&1)&
fi