How to set and list Linux environment variables
Linux environment variables are key-value pairs defining your system’s shell session and program behavior. They let system administrators easily...
Linux sed command: How to use and practical examples
The Linux sed command lets you find, replace, insert, and delete lines in a file without opening it using a ...
Linux touch command: what it is + examples of how to use it to modify timestamps
People usually associate the touch command in Linux with creating files. However, like many other Linux commands, it offers much ...
How to use the Linux watch command
The Linux watch command is a powerful tool that runs user-defined commands at regular intervals and displays the output. It’s ...
How to use the Linux ping command: main usage ways and tips
The Linux ping command is a tool for diagnosing connectivity issues, monitoring network performance, and checking server availability. It is ...
How to set up passwordless SSH on Linux
Due to its reliability and security, the secure socket shell (SSH) is the most common way to interact with a ...
How to kill a process in Linux from the command line
In Linux, managing running processes is key to maintaining system performance and stability. If you encounter an unresponsive or misbehaving ...
How to use the Linux dig command
The dig command, short for domain information groper, is a powerful network tool for querying domain name system (DNS) servers. ...
How to use tmux for terminal multitasking
A terminal multiplexer, or tmux, is a command-line tool that lets you manage multiple terminal sessions in a single window. ...