Holhol24 - Linux Howtos, Tutorials & Guides

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Computer networking allows users to send and receive messages, data, and instructions. There are many tools and utilities that are designed especially for this purpose, one of which is Netcat, or more commonly known as NC. What is Netcat?…

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This tutorial explains how to create a multiboot USB in Linux in which you just need to copy any ISO you want to boot. After reading this tutorial you’ll know how to create within a minute a multiboot USB containing multiple operating…

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‘du’ stands for the disc usage in a system. It is used to identify the usage of space by the files present in the system that causes the disc storage space to run out of the provided space. The du command uses different options and flags to…

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In Linux, we constantly work with text files such as configuration files, source codes, web pages, and many others. Hence, it is essential to have a quick view of the contents of a text file in the command line before editing the file.…

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SSH is a cryptographic network protocol that lets you control and modifies a remote computer over the internet. This protocol ensures security even through a vulnerable network. Most of the Linux distros use OpenSSH, an open-source project…

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UEFI (Unified EFI – Extensible Firmware Interface) is a software specification used to interface between the operating system and the firmware of your computer’s hardware. Fig 1: The position of EFI in the software stack (source:…

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A VPN (Virtual Private Network) is an encrypted tunnel that extends over a public network. It allows users to securely browse and access resources over an internet connection with utmost privacy and confidentiality. ProtonVPN is a…

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SORT command in Linux is used to arrange the record in a specific order according to the option used. It helps in sorting the data in the file line by line. SORT command has different features that it follows in the resultant of commands.…

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As the name implies, the tail command is used to display the last values of the content of the file. By default, the last 10 lines are selected. Whereas, we can customize the number of lines by providing the number in the command. Syntax:…

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As the name shows, the head command displays the first N lines of data. By default, it is a 10 number but can be customized. It is opposite to the tail command because the tail command helps in displaying the last N lines from the file.…