Another script for linux-shimeji

linux-shimeji.sh

#!/bin/bash
# A script meant for controlling linux-shimeji
# Made by that4chanwolf

shimdir="/opt/linux-shimeji"
shimfilename="Shimeji.jar"
shimjar="${shimdir}/${shimfilename}"
extra="/tmp/linux-shimeji"
debugfile="${extra}/debug.txt"
shimpid="$(ps aux | grep -v grep | grep "${shimfilename}" | awk '{ print $2 }')"
comptonpid="$(ps aux | grep -v grep | grep compton | awk '{ print $2 }')"
currenttime=" $(date | awk '{print $4 ", on " $1 ", " $2 " " $3 ", " $6}')"


if [ ! -d "${extra}" ]; then
	mkdir "${extra}"
fi
if [ ! -f "${debugfile}" ]; then
	touch "${debugfile}"
fi


_testpid() {
	if [ -z "${shimpid}" ]; then
		echo 'Error: Shimeji not running, unable to kill proccess.'
		echo 'Please start the script normally.'
		echo 'Aborting...'
		exit 1
	fi
	if [ -z "${comptonpid}" ]; then
		echo 'Error: Compton not running, unable to kill proccess...'
		echo 'Please run the script normally, or start compton seperately.'
		echo 'Aborting...'
		exit 1
	fi
}
_start() {
	echo 'Starting linux-shimeji...'

	# Shimeji
	java -jar "${shimjar}" >> "${debugfile}" & >/dev/null
	echo "Starting linux-shimeji with a PID of $(ps aux | grep -v grep | grep ${shimfilename} | awk '{ print $2 }') : ${currenttime}" >> "${debugfile}" &

	# Compton
	compton >> "${debugfile}" & >/dev/null
	echo "Starting compton with a PID of $(ps aux | grep -v grep | grep 'compton' | awk '{ print $2 }') : ${currenttime}" >> "${debugfile}" &
}
_stop() {
	# First off, are the programs running?
	_testpid

	echo 'Stopping linux-shimeji...'

	# Shimeji
	kill "${shimpid}" >> "${debugfile}" & >/dev/null

	# Compton
	kill "${comptonpid}" >> "${debugfile}" & >/dev/null
}
_forcekill() {
	echo 'Forcably killing linux-shimeji...'
	killall java compton >> "${debugfile}" & >/dev/null
	echo "linux-shimeji was forcably killed! : ${currenttime}" >> "${debugfile}" & >/dev/null
}
_restart() {
	echo 'Restarting linux-shimeji...'

	# Shimeji
	kill "${shimpid}" >> "${debugfile}" & >/dev/null
	java -jar "${shimjar}" >> "${debugfile}" & >/dev/null

	# Compton
	kill "${comptonpid}" >> "${debugfile}" & >/dev/null
	compton >> "${debugfile}" & >/dev/null
}
_status() {
	if [ -n "${shimpid}" ]; then
		echo "Shimeji is currently running with a PID of ${shimpid}."
	else
		echo 'Shimeji is not currently running.'
	fi
}

_usage() {
	echo 'linux-shimeji by that4chanwolf'
	echo 'Meant for quickly starting and stopping linux-shimeji'
	echo 'Usage: linux-shimeji.sh (start|stop|restart|status|forcekill)'
}
_shimeji() {
	case "$1" in
		start)
			_start;;
		stop)
			_stop;;
		restart)
			_restart;;
		status)
			_status;;
		forcekill|force|kill|fk)
			_forcekill;;
		*)
			_usage;;
	esac
}

_shimeji "$@"

exit 0