An intro to comm and diff commands
It's often useful to compare versions of text files.
An intro to managing user environment variables
There are two types of variables: shell and environment.
An intro to Process Management in Linux
A process is a program that is running and a Linux system typically has hundreds of processes running simultaneously.
An intro to Linux file and directory permissions
No, everyone should not be root.
An intro to text manipulation in Linux
Almost everything is a text file in Linux.
An intro to finding things in Linux
locate, whereis, which and find commands