In the first bash tutorial we went over brace expansions and a few history tricks. The goal of this post is to expand on that and teach more bash features.
Have you ever wondered when you typed a previous command in your history? This is easy to do with the $HISTTIMEFORMAT variable and bash >= 3.0. [...]

Overview
lsof or “List Open Files” is a favorite in my free software toolbox. It is so versatile there are few things you can’t do without it.
Here are some examples of real world lsof usage and a few things things you might not know it is capable of doing.
What process is holding onto /var/log/messages? lsof is [...]