Harry Hill

Environment variables are a fundamental part of the operating system that are used by the shell and various processes to store information related to system settings and configurations. The export command in Linux is a built-in command in the Bash shell used to set environment variables. When you start a new shell session, it will […]

Running Linux commands in the background is helpful for various reasons; this capability allows you to execute multiple commands simultaneously in a terminal session without waiting for one command to complete. This feature is particularly beneficial when dealing with lengthy data processing or file transfers, which are time-consuming processes. It results in time savings and […]

If you are the administrator of a Linux system that several users use, one of your challenges is probably related to using common files and their unwanted editing and accidental deletion. Files in Linux have attributes such as permissions, read/write file content, etc., which provide security and control of files.

Providing an uninterrupted service in the network and getting optimal performance from the network is a desire that all managers are trying to fulfill. To achieve this goal, a network manager must continuously monitor network performance and use network diagnostic tools to detect connection problems, delays, and possible network performance problems and troubleshooting. Traceroute is […]

The IP address is the number used to identify your computer on networks and the internet. IP Address in Ubuntu is used to view the local IP address, default gateway, and DNS servers. There are two methods to Find IP Address in Ubuntu. In this article, you will learn how to use the Command line […]

We all interact more with files on our personal computers. Viewing and editing the contents of important files such as configuration files, log files, text-based documents, and scripts is essential for various purposes. Configuration files are used for changes in system settings and programs, and log files are essential for detecting errors and troubleshooting the […]

Linux is a powerful and versatile operating system that allows multiple users to use a single system by creating separate personal user accounts. In addition, in Linux distributions, users can switch between different user accounts without setting and exiting the system while maintaining security and privacy. Therefore, if needed, you can switch to different user […]

Sending Email from Command Line?! It must be interesting for Linux administrators, developers, and users. Join us with this tutorial to learn How to Send Email From Command Line to make easier this essential task of the digital age. Also, you will learn to send Linux email attachments with the help of mail commands. There […]

Use dig command to query DNS servers for domain names, IP addresses, and DNS records. It helps troubleshoot DNS issues and perform advanced lookups on Linux systems. 🤖AI Overview: Use dig Command is a Linux utility that queries DNS servers to gather domain name system details including IP addresses and DNS record types like MX […]

Clearing the system of useless files and data and clearing the storage disk of the operating system is one of our daily tasks. It may have happened to you that you don’t need file data, and on the other hand, creating a new file with correct permissions and ownership is a time-consuming and challenging task; […]

SSH stands for Secure Shell. It is a protocol that uses encryption to protect your sensitive data while transmitting over the network. So, SSH enables you to log onto a remote system securely and run commands on it. In this article, you will review the Main SSH commands in Linux with examples. For managing a […]

As a Linux user, if you have a problem remembering an exact command, this guide is what you need. When you need a specific Linux command, but you cannot remember it, the apropos command is a good helper. The apropos command in Linux looks for instructions using keywords that are supplied to it in the […]