Start daemons with screen: rtorrent, irssi

fhtagn · 2011-01-25 15:33:54

Hello, community!

I run a headless server and, as of now, it boots with rtorrent as a daemon, using screen, like so:

#!/bin/bash
# file: /etc/rc.d/rtorrentd

USER=myusername
. /etc/rc.conf
. /etc/rc.d/functions

case "$1" in
  start)
    stat_busy "Starting rtorrent Service"
    su $USER -c 'screen -d -m -S rtorrent $USER' &> /dev/null
    if [ $? -gt 0 ]; then
      stat_fail
    else
      add_daemon rtorrentd
      stat_done
    fi
    ;;
  stop)
    stat_busy "Stopping rtorrent Service"
    killall -w -s 2 /usr/bin/rtorrent &> /dev/null
    if [ $? -gt 0 ]; then
      stat_fail
    else
      rm_daemon rtorrentd
      stat_done
    fi
    ;;
  restart)
    $0 stop
    sleep 3
    $0 start
    ;;
  *)
    echo "usage: $0 {start|stop|restart}"
esac
exit 0

The usual, as per our wiki and rtorrent documentation.

I would like to do the same with irssi, but maybe I can't due to not completely understanding this statement:

screen -d -m -S rtorrent $USER

I know the "-d -m" part initializes screen and does not attach to it. "-S rtorrent" names that screen as "rtorrent" (I can check that doing

C-a "

when inside a screen)
But that is as far as I know... I tried using the same script and replacing rtorrent -> irssi, but to no avail, it doesn't start by doing sudo /etc/rc.d/irssid start

I don't need irssi to start at boot, but it would be nice just to

sudo /etc/rc.d/irssid start

and have my IRC setup ready. Any hints? Common mistakes?

Thank you for your time

edit: I also tried to follow irssi's guide but I can't create another screen session. (as in: only rtorrent has its own screen)

Last edited by fhtagn (2011-01-26 05:25:57)

axion419 · 2011-01-26 03:47:28

in your .screenrc, cant you just put a

screen -t irssi irssi

and once screen is launched, it will read the config file, and launch irssi.

fhtagn · 2011-01-26 04:56:34

Thank you.

That does solve the problem. However, it is not as automated as I would like ( start/stop/restart at my will into another screen session ) nor as 'tidy' as using a separate script like rtorrent.

And somehow I have no ~/.screenrc, but other users do. Weird.

Will post feedback later.

fhtagn · 2011-01-29 01:42:12

Well, after messing with .screenrc I ended up doing it with a little help from the wiki.

Now, my /etc/rc.d/irssi has:

#!/bin/bash

. /etc/rc.conf
. /etc/rc.d/functions

DAEMON=irssi
USER=<username>
PID=$(pidof -o %PPID $DAEMON)

[ -r /etc/conf.d/irssi ] && . /etc/conf.d/irssi

case "$1" in
  start)
    stat_busy "Starting $DAEMON Service"
    [ -z "$PID" ] && su $USER -c 'screen -dm -S '$DAEMON' -c ~/.irssi/.screenrc_irssi' &> /dev/null
    if [ $? != 0 ]; then
      stat_fail
    else
      add_daemon $DAEMON
      stat_done
    fi
    ;;
  stop)
    stat_busy "Stopping $DAEMON Service"
    [ -n "$PID" ] && kill $PID &>/dev/null
    if [ $? != 0 ]; then
      stat_fail
    else
      rm_daemon $DAEMON
      stat_done
    fi
    ;;
  restart)
    $0 stop
    sleep 3
    $0 start
    ;;
  *)
echo "usage: $0 {start|stop|restart}"
esac

exit 0

and in ~/.irssi/.screenrc_irssi I have

screen -t irssi irssi

And it works!

Is it overkill? Why do I need to have

[ -z "$PID" ] && su $USER -c 'screen -dm -S '$DAEMON' -c ~/.irssi/.screenrc_irssi' &> /dev/null

with '$DAEMON' instead of $DAEMON ? Otherwise it does not work... Probably something to do with bash

Arch Linux

#1 2011-01-25 15:33:54

Start daemons with screen: rtorrent, irssi

#2 2011-01-26 03:47:28

Re: Start daemons with screen: rtorrent, irssi

#3 2011-01-26 04:56:34

Re: Start daemons with screen: rtorrent, irssi

#4 2011-01-29 01:42:12

Re: Start daemons with screen: rtorrent, irssi

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