For some reason I always find it hard to remember how to create and extract gzipped TAR archives, but here is how to do it.

The way to avoid prompts when dealing with the APT package handling utility in Ubuntu Server.

A simple feature you one day may be glad you know.

If you just like me daily connect to multiple SSH servers, then I have a tip for you.

How to display the total of the current directory or a particular directory, as well as listing subtotals (subdirectories).

The utility command grep has a more powerful brother that let us use POSIX Extended Regular Expressions.

Stop using root for administrative tasks. Here is how to add a new user to the sudoers list in Ubuntu.

A practical tip on how to avoid cached results when looking up DNS records.