Daemonise rtorrent with screen with the file /etc/init.d/rtorrent

rtorrent

#!/bin/bash
### BEGIN INIT INFO
# Provides:          rtorrent
# Required-Start:    $local_fs $remote_fs $network $syslog $netdaemons
# Required-Stop:     $local_fs $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: rtorrent script using screen(1)
# Description:       rtorrent script using screen(1) to keep torrents working without the user logging in
### END INIT INFO
# config
user="pi"
group=$(id -ng "$user")
config=("$(su -c 'echo $HOME' $user)/.rtorrent.rc")
options=("")
base=$(su -c 'echo $HOME' $user)
srnname="rtorrent"
logfile="/var/log/rtorrentInit.log"

# script
PATH=/usr/bin:/usr/local/bin:/usr/local/sbin:/sbin:/bin:/usr/sbin
DESC="rtorrent"
NAME=rtorrent
DAEMON=$NAME
SCRIPTNAME=/etc/init.d/$NAME

case "$1" in
  start)
    echo "Starting $DESC: $NAME"
    [ -d "${base}" ] && cd "${base}"
    stty stop undef && stty start undef
    su $user -c 'screen -S rtorrent -t rtorrent -d -m rtorrent' &> /dev/null
    if [ $? -gt 0 ]; then
      echo "Failed to start $DESC: $NAME"
    else
      echo "Started $DESC: $NAME"
    fi
    ;;
  stop)
    echo "Stopping $DESC: $NAME"
    killall -w -s 2 rtorrent &> /dev/null
    screen -wipe
    if [ $? -gt 0 ]; then
      echo "Failed to stop $DESC: $NAME"
    else
      echo -n "Stopped $DESC: $NAME"
    fi
    ;;
  restart|force-reload)
    $0 stop
    sleep 1
    $0 start
    ;;
  *)
    echo "usage: $0 {start|stop|restart|force-reload}"
esac
exit 0