Harry Hill

After purchasing the Linux VPS service, you may want to test disk speed in Linux differently distributions. There are different types of disks such as hard disk, SSD, SSD NVMA, M2, and SES. Each of the mentioned disks has different technologies and naturally different speeds. In OperaVPS, we use SSD storage on our servers to […]

sudo command not found error means sudo package is not installed or PATH variable does not include sudo’s directory. To fix this bash error, you can install sudo in linux using apt install sudo command (apt package manager for Debian-based distributions).

Sometimes we need to get the server’s hardware details like RAM, CPU, Motherboard, and Graphic card and find out how they operate. Or maybe we need to stress the CPU or Storage system to find out its power. To do this in Windows without any software, unfortunately, you are limited. So in this tutorial, we […]

ps Command in Linux lists running processes with details like Process ID, CPU usage, and command name. It works by reading data from the /proc directory and supports various options to filter or format process information for monitoring and management. 🤖AI Overview: ps Command in Linux is a built-in tool used to display information about […]

File systems play a crucial role in organizing, storing, and retrieving data on storage devices, and the failure of file systems can have irreparable consequences. As a Linux system administrator, you should prioritize the maintenance and health of the storage system and enhance your knowledge in this area. The powerful command-line tool fsck (file system […]

tail Command in Linux displays the last lines of a file in real time. Developers use it to monitor log files or outputs. Use tail to track changes without reopening the file. 🤖AI Overview: The tail Command in Linux is a utility that displays the last part of text files or streams directly in the […]

Uptime Command in Linux shows how long the system has been running, the number of logged-in users, and load averages over 1, 5, and 15 minutes. It helps developers monitor system performance and troubleshoot by providing key uptime and load information. 🤖AI Overview: The uptime Command in Linux shows how long the system has been […]

In Linux, you can control everything! The resources of the system must be managed to not be deleted on intention or accidentally which leads to some troubles for users on the system. To do this, admins need to create restrictions for the user and allocate resources in the most effective manner possible based on requirements. […]

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 […]

Nano Text Editor is a lightweight command-line text editor in Linux, ideal for quick file edits with easy keyboard shortcuts. It supports essential editing features and runs directly in the terminal. 🤖AI Overview: Nano Text Editor is a straightforward and widely used command-line editor on Unix and Linux platforms. It facilitates creating, editing, and saving […]

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.