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I just moved from .net development to LINUX MONO development... and i don have much experience with linux dev earlier..

I use scripts, so I can capture the exit code and use it to perform automated updates and things. It also restarts itself if it crashes, and e-mails you when it restarts with the last x lines of the log file.

/etc/init.d/MyMonoApp

#!/bin/sh
#/etc/init.d/MyMonoApp
APP_NAME="MyMonoApp"
APP_PATH="/home/mono/MyMonoApp"
APP_USER=mono
case "$1" in
  start)
        echo "Starting $APP_NAME"
        start-stop-daemon --start \
                          --background \
                          --make-pidfile \
                          --pidfile /var/run/$APP_NAME.pid \
                          --chuid $APP_USER \
                          --exec "$APP_PATH/$APP_NAME"
  stop)
        echo "Stopping $APP_NAME"
                start-stop-daemon -o  --stop \
                --pidfile /var/run/$APP_NAME.pid
    echo "Usage: /etc/init.d/$APP_NAME {start|stop}"
    exit 1
exit 0
/home/mono/MyMonoApp
#!/bin/sh
#!/home/mono/MyMonoApp
APP_NAME=`basename $0`
APP_DIR=`dirname $0`
HOSTNAME=`hostname`
cd $APP_DIR
tail --lines=300 output.log  | mail -s "MyMonoApp $HOSTNAME:$APP_NAME STARTED" "me@email.com"
exitcode=0
until [ $exitcode -eq 9 ]
        startdate="$(date +%s)"
        /usr/local/bin/mono MyMonoApp.exe $HOSTNAME:$APP_NAME > output.log
        exitcode=$?
        enddate="$(date +%s)"
        echo "EXIT CODE = $exitcode" >> output.log
        cp -f output.log output.log.1
        elapsed_seconds="$(expr $enddate - $startdate)"
        echo "Elapsed seconds $elapsed_seconds"
        subject="EXIT CODE: $exitcode"
        echo "BASH: Exit Code = $exitcode"
        if [ $exitcode -eq 6 ] #Restart
          subject="RESTART"
        elif [ $exitcode -eq 7 ] #Previous version
          subject="PREVIOUS VERSION"
          cp -fv MyMonoApp.exe_previous MyMonoApp.exe
        elif [ $exitcode -eq 8 ] #Update
          subject="SOFTWARE UPDATE"
          cp -fv MyMonoApp.exe MyMonoApp.exe_previous
          mv -fv MyMonoApp.exe_new MyMonoApp.exe
        elif [ $exitcode -eq 9 ] #Shutdown
          subject="SHUTDOWN"
        if [ $elapsed_seconds -ge 10 ]  #been running for longer than 10 seconds
                tail --lines=300 output.log  | mail -s "MyMonoApp $HOSTNAME:$APP_NAME $subject" "me@email.com"
                sleep 1  # tiny delay to let things settle
                sleep 5  # delay to protect against eating the CPU resourses
Note: if you close the app using the init.d script, it will kill the process, rather than signal it to cleanly close.
                @FlappySocks the script works great except when I stop the service using the init.d script it stops the script but it doesn't stop the mono process. Any idea on how to fix this?
– ColmanJ
                Nov 6, 2016 at 10:25
The Unix word for service is Daemon.  Regular daemons can be found in /etc/init.d/ and are installed into the runlevel they are supposed to run in by being symlinked from /etc/rc.* directories.
Just use p/invoke like you normally would.  You can also check out the source code of some other simple mono-based projects like Banshee to see how they do p/invokes on Linux.  Just search for banshee on google.com/codesearch.
For 1. - yes it is possible to create background service in mono c#. Service is in fact a program that runs in background takes no input from keyboard and mouse, and does not output to directly to the user's screen. 
After you create such program you can just run it with nohup ./programname &
to set it to work into background and ignore the hangup signal (that is sent to your running  processes when you log out). 
If you want to integrate it better, then you must write some additional scripts for stopping,  starting, restarting it, etc (depending on your chosen linux distribution). 
                thanks Senad Uka, u mean, its going to be any normal windowless console app, and will be set to run in background using LINUX commands..
– RameshVel
                Aug 3, 2009 at 8:03
        
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