Bash Source Command
The source command reads and executes commands from the file specified as its argument in the current shell environment. Source is a shell builtin in Bash and other popular shells used in Linux and UNIX operating systems.
Sudo Command in Linux
The sudo command allows you to run programs as another user, by default the root user. Using sudo instead of login in as root is more secure because, you can grant limited administrative privileges to individual users without them knowing the root password.
How to Save a File in Vim / Vi and Quit the Editor
Knowing the basics of Vim will help you if you encounter a situation where your favorite editor is not available. In this guide we will explain how to save an a file in Vim / Vi and quit the editor.
Linux Nohup Command
The nohup command executes another command specifies as its argument and ignores all SIGHUP (hangup) signals.