How to understand Sudo Command.
How To Understand Sudo Command. In this tutorial, we will explain how to use the sudo command. Using sudo instead of login in as root is more secure because you...
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How to use Bash Source Command.
How To Use Bash Source Command. The source command reads and executes commands from the file specified as its argument in the current shell environment. It is useful to load...
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How to use Free Command.
How To Use Free Command. The free command provides information about the total amount of the physical and swap memory, as well as the free and used memory. In Linux...
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How to use tr command.
How To Use Tr Command. In this tutorial, we will show you how to use the tr command through practical examples and detailed explanations of the most common options. tr...
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How to Run Sudo Command Without Password
How To Run Sudo Command Without Password The sudo command allows trusted users to run programs as another user, by default the root user. If you spend a lot of...
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How to use less command
How To Use Less Command Less is a command line utility that displays the contents of a file or a command output, one page at a time. It is similar...
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How to use unmask command.
How To Use Unmask Command. It is used by mkdir, touch, tee , and other commands that create new files and directories. On Linux and Unix operating systems, all new...
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How to Check if a String Contains a Substring in Bash
How To Check If A String Contains A Substring In Bash In this article, we will show you several ways to check if a string contains a substring. One of...
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How to List Groups.
How To List Groups. This tutorial explains how to show all groups a user is a member of. We will also explain how to list all members of a group....
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How to Check the Kernel Version in Linux
How To Check The Kernel Version In Linux In this tutorial, we’ll show you several different ways to find out what version of Linux kernel is running on your system....
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