In this article, we will learn how to use sed command in linux with 12 practical examples. The sed command is a powerful and useful text-processing tool in Unix / Linux for editing the content (files) line by line, including inserts, appends, changes, and deletes. Furthermore, it supports regular expressions, so it can match complex […]
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The "cd" (change directory) command in Linux/Unix is pretty simple. It is one of the standard routine commands for every Linux user. It permits you to switch directories from one to another via Terminal. The cd command works based on the absolute path and relative path. Note: If you are a newbie or Windows user, […]
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Sudo is the default utility on Unix-Linux systems, which is known as SuperUserDo. The Linux system forbids normal users from executing administrative commands. However, we can use this mechanism to allow regular users to run any application or command as a root user or to grant specific commands to specific users. In order to run […]
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SSH is one of the main key services in Linux/Unix based systems. SSH represents Secure Socket Shell. SSH protocol is used to access the remote server/system with an encrypted method of login using the default TCP/IP port 22 or a custom based port number. This service is mainly used by System and Network Administrators to […]
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This practical guide will help you understand the use of the df command in Linux and how to use it with multiple options on Linux/Unix systems. The 'df' (Disk Free) command is in an inbuilt utility to find the available and disk usage space on Linux servers/storage. This command is mainly used by all the […]
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Linux/, a Unix based system that comes with an inbuilt utility 'ps' (processes status) to check the information on the running process. The process is nothing but a program in Linux/Unix to execute a specific task. For more daily essentials, see our Linux system administration cheat sheet. The ps command in linux is used to […]
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This article explains how to use curl in Linux with 15 examples. The curl command is one of the most powerful and useful tools that are used by web developers as well as by PHP programmers and System Administrators. Most commonly, it is used to transfer data between remote and local systems. Through this command, […]
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Learn how to use the du command in Linux to check disk usage, find large files and directories, and free space using practical, real-world command examples. It is a standard command used to estimate space usage (meaning, in the terminal we can find the exact size each directory and file takes up). There are multiple […]
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The find command in Linux/Unix is known to be one of the most important and frequently used commands for searching files and directories. It pairs well with our other Linux file management commands. It supports different arguments and options for finding files and directories. Even if you can search files and directories in Linux via […]
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On Linux/Unix platforms, the 'ls' command is one of the most frequently used commands, and it pairs naturally with the cd command for moving between directories. This should be one of the first commands you train when you enter the shell/command prompt. If you're new, start with our Linux commands for beginners guide. This guide […]
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The echo command in Linux is an essential tool for scripting and programming. The purpose of the echo command in Linux primarily displays or prints various arguments on the terminal screen. Additionally, the command can be used to create and modify environment variables, manage file input/output, and execute shell commands. This is a highly versatile […]
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By using the cron command, we can schedule and run many tasks automatically in Linux/Unix. You can execute them once or on a regular basis. Cron is widely used to schedule repetitive tasks at regular intervals (using commands listed in a file called 'crontab'), and the 'at' function is a way of scheduling a task […]
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The 'cat' command is one of the most frequently used commands in Linux (short for "concatenate"). This is a standard Unix application that concatenates and displays files. There are three functions associated with text files (1. By using the cat command, we can see the contents of a file on screen. Cat concatenates FILE(s) or […]
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