pkill for AIX Linux Solaris AIX HP-UX

#FILE NAME: pkill
#Killing processes by command string
#!/bin/sh

HOSTTYPE=`uname -s`

SIGNAL=$1
STRING=$2

if [ -z "$1" -o -z "$2" ]
then
    echo Usage: $0 signal string eg: pkill -9  frmweb
    exit 1
fi

case $HOSTTYPE in
    Darwin|BSD)
    ps -a -opid,command | grep $STRING | awk '{ print $1; }' | xargs kill $SIGNAL
    ;;
    Linux|Solaris|AIX|HP-UX)
    ps -e -opid,command | grep $STRING | awk '{ print $1; }' | xargs kill $SIGNAL
    ;;
esac