Tille - I can see you, read those man pages!   Tille's Site

Exercise on init scripts

The purpose of this exercise is to learn how to make start and stop scripts for init. We will make a simple example script that makes our machine print a banner when it starts up, and another when it shuts down.

Needed for this exercise:

  • The root password for your machine.
  • When on Linux: the bsd-games package which contains the banner command. Use rpm -Uvh bsd-games-version.rpm or apt-get bsd-games if you don't have it installed.

Short task description:

  • Make a script containing two case statements: in the case of start, make the script print a banner saying the machine is coming up, in the case of stop another banner saying it is going down.
  • Put the script in your init.d directory (generally something on the lines of /etc/rc.d/init.d or /etc/init.d).
  • Make symbolic links in the configuration directory for runlevel 3: K99banner runs the init script with the stop argument, while S99banner runs the script with the start argument.
  • Test your script: init 6: you should see your banner when the machine goes down; the startup banner should be displayed when it reboots.

Alternatively, you can use the play command and any of the sounds in /usr/share/sounds/*/*.wav for a machine with more personality.

See here for a step-by-step explanation.

Home
© 1995-2010 Machtelt Garrels - tille - Powered by vIm - Best viewed with your eyes - Validated by W3C - Last update 20100511