Shell functions are declared using this syntax: [ function ] name () compound-command [ redirectio... Example: function ll { ls -alF $* } Example 2: ll() { ls -alF $* } Shell functions can be exported to subshells with the -f switch: $ export -f ll However , I had problems logging in Ubuntu 11.10 after I added this to .profile : export -f ll

Create a startup script for inetd Copy /etc/init.d/skeleton to /etc/init.d/inetd . Change the top section of the script to read: PATH=/usr/sbin:/usr/bin:/sbin:/bin DESC="In... Now inetd can be stopped/started/restarted like this: sudo /etc/init.d/inetd stop sudo /etc/init.... Add links to rc*.d $ sudo update-rc.d inetd defaults Adding sy... If you no longer need to start inetd at boot up: $ sudo update-rc.d -f inetd remove update-r... This would remove the links from the start up sequence but leave /etc/init.d/inetd in place. Contents of /etc/init.d/skeleton : #! /bin/sh ### BEGIN INIT INFO # Provide...

Run levels locations Level Location 0 /etc/rc0.d 1 /etc/rc1.d 2 /etc/rc2.d 3 /etc/rc3.d 4 /etc/rc4.d 5 /etc/rc5.d 6 /etc/rc6.d Standard run levels ID Name Description 0 Halt Shuts down the system. S Single-User Mode Does not configure network interfaces or start daemons. 6 Reboot Reboots the system. Debian Linux (Ubuntu) ID Description 0 Halt 1 Single user mode 2-5 Full multi-user with console logins and display manager if installed 6 Reboot Red Hat Linux (Fedora) ID Description 0 Halt 1 Single user 2 Not used/User definable 3 Full multi-user, console logins only 4 Not used/User definable 5 Full multi-user, with display manager as well as console logins 6 Reboot