What is /dev/null in Linux and How to Use It
The null device in Unix systems is /dev/null. Its purpose is to immediately discard anything sent to it.…
Bash Append to File
There are various ways to append text to a file in bash. In computing, append means to add…
How to Set Up Passwordless SSH Login With SSH Keys
Many novice users to Linux are surprised to learn that the most secure method to connect to another…
Bash Printf Command
The bash printf command prints the formatted strings in the shell. It stands for print formatted. The command…
How to List Running Services in Linux
What is a Linux Service? In simpler terms, a Linux service is a server’s response to a request…
Bash Compare Strings
Similar to other programming languages, strings in bash is the datatype that holds a sequence of characters. In…
Sed Command in Linux Examples
The Sed command is a very powerful tool that is used for viewing, editing, and modifying files. It…
Vi vs Vim – Differences and Similarities Explained
This tutorial explains the differences and similarities between the Vi and Vim editors using straightforward examples. Although we…
FFmpeg: How to Crop Videos/Images Using the Crop Filter
FFmpeg is a powerful CLI tool that can do almost anything you can imagine with multimedia files. It…
How to Undo/Redo Changes in Vim/Vi
Vim is a Unix-based text editor. It is an advanced and improved version of Vi text editor and…
Awk vs Sed vs Grep in Linux – Differences Explained
Text processing is of great importance for a computer user, as the computer can perform tedious tasks that…
How to Install VirtualBox on Debian
[powerkit_collapsible title=”Not using Debian? Choose a different version or distro.”] Ubuntu [/powerkit_collapsible] Oracle VM VirtualBox is an open-source,…