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Linux

How to Use Sed in Linux

Sed stands for stream editor. It is a command line based editor for Linux. Popular use of sed is for editing file(s) as part of an automation script in Linux, as usual editors require active user input and cannot edit files outside of the editor screens. Sed is most commonly used for doing a find […]

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Linux

How to Get Wikipedia Article Summaries in Linux Command Line

Wikipedia has now become the go-to encyclopediac ecosystem on the Internet. Edited, maintained and supported by millions all over the world, it is the most successful decentralized information creation platform. Increasing strictness over the years on citing references has ensured reduced vandalism and promotional content. The node package wikit offers a way to fetch and […]

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Linux

How to Use Grep Command in Linux

grep program is one of the most commonly used text processing programs in Linux. It is used to search for a substring or a string pattern in files. Let us see how to use grep and what options are available. Consider the contents of a text file: To search for string fox in this file, […]

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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 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 […]