bash script for starting/stopping selenium server from python 2.7's SeleniumLibrary

selenium.sh

#!/bin/bash
if [ "$1" == 'stop' ]; then
        echo "Stopping selenium server..."
        pid=`ps -eo pid,args | grep selenium-server.jar | grep -v grep | cut -c1-6`
        kill -9 $pid
elif [ "$1" == 'start' ]; then
        echo "Starting selenium server..."
        cd /Library/Python/2.7/site-packages/SeleniumLibrary/lib/
        java -jar selenium-server.jar &> /dev/null &
else
        echo "Nothing to do"
fi

Or just alias 'kill_selenium'='sudo kill $(lsof -i:5859 | grep localhost:5859 | cut -c9-14)' works for me to kill selenium-standalone.