how to start things at boot time
See also Starting stuff at boot time.
This article talks
about how to get scripts to execute each time the box is rebooted. This is handy
for ensuring certain programs are always running.
[Note: the original article title was "/etc/autoexec.bat | how to start
things at boot time". This was discarded because the humour assumed a
familiarity with DOS.]
/usr/local/etc/rc.d/ is your friend
The /usr/local/etc/rc.d/ directory is one of the default startup
directories. If you look at /etc/defaults/rc.conf, you’ll find this:
# grep local_start /etc/defaults/rc.conf local_startup="/usr/local/etc/rc.d /usr/X11R6/etc/rc.d"
This setting determines which directories are scanned for shell scripts at startup.
Executable files within these directories are run in alphabetical order. If
you need the files to be executed in a specific order, try numbering the files. For
000This.Will.Run.First.sh 020This.Will.Run.Next.sh 030And.Then.This.sh
/etc/rc.local was your friend
At one time, /etc/rc.local was the file into which you placed calls to the
various start up scripts. This feature remains for backwards compatibility but it
has been deprecated. Use /usr/local/etc/rc.d/ instead.