Make script compatible with chkconfig

To make an init script compatible with chkconfig (to autostart on next runlevel change), add the following header to your script within it's /etc/init.d/ file, for example, /etc/init.d/myscript

#!/bin/bash

#
# myscript     init script to manage myserver
#
# chkconfig: 2345 90 35
# description: A server which does amazing things.
#


Now, add it with these commands:

/bin/chmod +x  /etc/init.d/myscript
/sbin/chkconfig myscript --add
/sbin/chkconfig myscript on
/sbin/chkconfig myscript --list
myserver       0:off    1:off    2:on    3:on    4:on    5:on    6:off


Within the chkconfig definition line, 2345 means the runlevels it will be started under, and 90 35 are the start and kill priorities, an integer between 0 and 99.  In this example, it would be started as one of the last services, and killed (stopped) as one of the earlier processes.

chmod calculator

The best that I have found for quickly calculating numerical permissions:

http://www.javascriptkit.com/script/script2/chmodcal.shtml