Simple init.d Service script to start a tshock Terraria Server

terrariad

#!/bin/sh

#
# Terraria Config
#

# Tmux session ID
SESSION=terraria

# Username to run as
USERNAME=terraria

# Location of Terraria files
TERDIR=/home/terraria/Terraria

# Server executable
SERVER=${TERDIR}/TerrariaServer.exe

# Server Config
CONFIG=${TERDIR}/server.conf

# World to load
WORLD=${TERDIR}/Worlds/${WORLD_NAME}.wld

# Source function library.
. /etc/rc.d/init.d/functions

ME=`whoami`
as_user() {
  if [ $ME == $USERNAME ] ; then
    bash -c "$1"
  else
    su - $USERNAME -c "$1"
  fi
}

start() {
    if [ $UID -ne 0 ] ; then
        echo "User has insufficient privilege."
        exit 4
    fi

    ARGS="-ip 0.0.0.0 -config ${CONFIG}"
    CMD="mono ${SERVER} ${ARGS}"

    echo "Starting Terraria Server... "
    as_user "tmux new-session -d -s $SESSION"
    as_user "tmux send-keys -t ${SESSION} \"$CMD\" C-m"
}

stop() {
    if [ $UID -ne 0 ] ; then
        echo "User has insufficient privilege."
        exit 4
    fi

    as_user "tmux send-keys -t ${SESSION} \"exit\" C-m"
    echo "Stopped Terraria Server"
}

restart() {
    stop
    start
}

case "$1" in
    start)
        $1
        ;;
    stop)
        $1
        ;;
    restart)
        $1
        ;;
    *)
        echo $"Usage: $0 {start|stop|restart}"
        exit 2
esac
exit $?