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Linux

How to Use GNU Debugger in Linux

GNU Debugger is used to debug a program, to analyze crash, or to see what the program does at a particular point. It was developed by the GNU Project in the 1980s and has been one of the most widely used command line debuggers as well as one of the most popular GNU software. Let […]

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Linux

How to Change GRUB Background in Linux

GRUB (Grand Unified Bootloader) is the default boot loader program for Linux based operating systems. One of the most familiar screens in Linux is the GRUB menu while booting. It lists all the installed operating systems on the computer, including Microsoft Windows operating systems, any of which the user can choose to boot into. The […]

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Linux

How to Use Git in Linux

From the late ’80s when version control software first started developing, Git remains the most easy to use code change tracking tool. Services like Github and Gitlab offer storage of code in a repository, often referred to as a ‘Remote’ repository. They act as central storage of code; Git can sync a local code with […]

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Linux

How to Run Windows Programs and Games in Linux using Wine

Wine, which stands for Windows Emulator, is a Linux program that lets you run Windows software on Linux machines. It lets you run .exe files like you do on Windows itself. This is especially helpful when a particular program is not available for Linux but available for Windows. Wine can even run Games for Windows […]

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Apps Linux

How to Create and Run a Macro in LibreOffice Calc on Linux

LibreOffice is the FOSS world’s answer to the mainstream and proprietary Microsoft Office Suite. Developed by leading Office Productivity software developers and contributors, it offers a complete replacement for Microsoft Office on multiple Operating Systems. The LibreOffice app equivalent of Microsoft Excel is called LibreOffice Calc. It comes with a number of features and an […]

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Linux

How to Create a Linux Man Page

The command man on Linux is embedded in the muscle memory of every Linux developer and user. It is used by literally everyone; from amateur and novice developers to Linux professionals and experts. It is used for reading the command line manual page for a Linux command, configuration file, or any other feature. Manual pages […]

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Linux

How to Use Convert Tool to Edit Images from Linux Command Line

ImageMagick is a suite of image modification software for Linux. It consists of many tools with number of options for image modification, conversion, etc. Installing ImageMagick (convert) First verify if ImageMagick is already installed using: If it is not installed, we can install it on Ubuntu and Debian with: └ Note: For older Ubuntu versions (version […]

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Linux

How to use Linux Screen

Learn how to use the ‘screen’ tool on Linux

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Linux

How to Fix UFW Deny Rule when it is not Blocking an IP Address

ufw (Uncomplicated Firewall) is a Linux command line tool for managing Linux iptables firewall easily. It enables users to manage firewall rules on a machine with simple commands like ufw allow and ufw deny to allow or block access from an IP/subnet. If you’ve been trying to block an IP address using ufw deny but […]

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Linux

How to Use 'Pkexec' (a sudo alternative) to Run Commands as Root on Linux

sudo is the commonly used program for tasks requiring administrator access in Linux. But in case there is an error with the sudo command or if the sudoers file is invalid, or certain programs are blocked by sudo access, users can make use of a similar command line tool — pkexec. pkexec runs in similar […]