'chkconfig' script for debian

#!/bin/sh
# Author: Tim Boormans, Direct Web Solutions
# Email: info [at] directwebsolutions.nl
# Description: This script works like chkconfig, but uses update-rc.d in
# the background for adding and removing system services on a Debian system.
#
# Examples:
# chkconfig --add name_of_the_service
# chkconfig --del name_of_the_service
#
# Not working: chkconfig 2345 80 20

# For using this on your own system add a file called 'chkconfig' with
# this content in the /sbin/ folder on your harddrive and
# run once this command: chmod +x /sbin/chkconfig


# Variables
SERVICE=$2

# Functions
add() {
        if [[ `ls -a /etc/init.d/ | grep -e "^$SERVICE$"` ]]
        then
                echo -n "Adding service: $SERVICE"
                echo
                /usr/sbin/update-rc.d $SERVICE defaults
        else
                echo -n "File /etc/init.d/$SERVICE not found."
                echo
        fi
}

delete() {
        if [[ `ls -a /etc/init.d/ | grep -e "^$SERVICE$"` ]]
        then
                echo -n "Removing service: $SERVICE"
                echo
                /usr/sbin/update-rc.d -f $SERVICE remove
        else
                echo -n "Error removing: service does not exist."
                echo
        fi
}

# Exactly two parameters required
if [[ $# != 2 ]]
then
        echo -n "Usage: $0 {--add|--del} name_of_the_service"
        echo
        exit 1
fi

# Check the command line for actions
case "$1" in
        "--add")
                add
                ;;
        "--del")
                delete
                ;;
        *)
                echo -n "Usage: $0 {--add|--del} name_of_the_service"
                echo
                exit 1
esac

exit 0