How to edit the sudoers file to obtain and manage root privileges
The sudoers file is a critical configuration file in Linux and Unix-like operating systems that controls user privileges. It defines who can execute...
How to Use the Linux tee Command With Useful Examples
Navigating Linux commands can be intimidating, but the more you learn, the easier it gets. The Linux tee command is a versatile tool that streamlines...
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...
How to Use the Linux sed Command in 2025 With Useful Examples + Free Linux Cheat Sheet
The Linux sed command lets you find, replace, insert, and delete lines in a file without opening it using a text editor. Suitable for piped input and...
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 broader...
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 remote server. However, using this...
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 process,...
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. It helps diagnose and...
How to Use the Linux Shutdown Command in Ubuntu and CentOS
Most of the popular Operating systems out there allow you to shut down your PC or laptop with different methods. Linux operating systems also has ways...