Automatix makes installing almost everything simpler.
Display your current routing table from the terminal window.
Clear the terminal window quickly with the clear command.
View memory usage from the terminal prompt
Auto scroll the log file as new items are added
Install apache with mod_php for php5 on Ubuntu
Enable more repositories for Ubuntu
Restore a database using a mysqldump backup file
Back up your database using mysqldump
How to set the root password in MySQL using mysqladmin
Allow mysql to listen for connections from other computers.
Show disk space usage from the terminal prompt.
List the partitions in Ubuntu from the terminal prompt.
Make sudo permanent for the current session.