ubuntu

How to Edit /etc/apt/sources.list in Ubuntu

Post last modified:March 27, 2021
Post category:Linux
Post author:Manikandan

In Ubuntu the /etc/apt/source.list file is a configuration file for Advance Packaging Tool (APT). This file saves all URLs for remote repositories from where software packages and applications are installed.
When you install any software using the apt install or apt-get install then the apt tool looks inside the file /etc/apt/sources.list for the available remote repository links. And then it searches for the required software from that available remote repository and starts the download and installs it.

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Compress JPEG and PNG Images with Curtail Image Compressor

Post last modified:March 26, 2021
Post category:Linux
Post author:Manikandan

Curtail is a free and open source image compressor software for Linux. Using Curtail you can compress JPEG and PNG files. It supports lossy and lossless compression. The application is simple and easy to use just drag and drop your image in the application and it automatically compress it. Using this you can remove file metadata, dark theme support and Progressive encode JPG support. You can also set the PNG lossy compression level, PNG lossless compression level and JPG lossy compression level in the settings.

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Session Open source Encrypted Secure Private Messenger Application

Post last modified:March 25, 2021
Post category:Linux
Post author:Manikandan

Session is a free and opensource encrypted private messaging app for Linux, Windows, MacOS, Android, and iOS. All session accounts are completely anonymous. It removes all sensitive metadata collection from your messages. You don’t need any phone number or email to signup and create new Session ID. According to session, it doesn’t collect any data, so there’s nothing to leak. All messages are Send through onion routing network.

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Kooha Screen Recorder Software for Linux

Post last modified:March 24, 2021
Post category:Linux
Post author:Manikandan

Kooha is a free and open source simple screen recorder application for Linux. It is released under GNU General Public License v3.0 and written in Python and GTK. It is a simple cute little screen recorder application. Using Kooha you can record your screen and audio from your desktop and your microphone. You can also capture the mouse pointer. You can record full screen or selected part of the screen from desktop. Some other important features are you can delay the starting of screen recorder by 5 or 10 seconds and save the output file in WebM and MKV file formats.

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ThiefMD Markdown Editor and File Manager for Linux

Post last modified:March 23, 2021
Post category:Linux
Post author:Manikandan

ThiefMD is a free and open source Markdown editor and file manager application for Linux systems. It is inspired by Ulysses and based on Quilter project. It is released under GNU General Public License v3.0. You can export your markdown files to PDF, ePub, docx, WriteFreely, Ghost, WordPress, and many more file formats. And also import files from ePub, docx and html.

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Display Key Presses and Mouse Events for Screencasting with KmCaster

Post last modified:March 22, 2021
Post category:Linux
Post author:Manikandan

Now you can capture keyboard and mouse events in Linux easily with KmCaster application. KmCaster is a free and open source software for Linux, macOS and Windows. It displays your keyboard key presses and all mouse click events in the desktop screen. You can use this feature for your screen casting and screen recording in educational or any other type of video making. It is based on Java and released under MIT License. Some other similar application is ScreenKey.

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Download Torrent Files with Fragments BitTorrent Client

Post last modified:January 10, 2022
Post category:Linux
Post author:Manikandan

Fragments is a simple and easy to use BitTorrent Client for Linux. It is a free and open source software released under the GNU General Public License v3.0. You can add the downloaded torrent file or add the file via the magnet link also. It comes with dark and light mode. You can remove and pause the download, encrypt your connection during download, change the download directory and also set the maximum active parallel download numbers in the settings page.

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Quick Lookup Wiktionary Dictionary Application for Linux

Post last modified:March 20, 2021
Post category:Linux
Post author:Manikandan

Quick Lookup is a free and open source Linux Wiktionary dictionary application. Quick Lookup allows you to search and view the Wiktionary results in a simple GTK application. Using this you can check word definitions and phrases. It comes with more than 46 languages support. You can choose and change the language by entering language name or ISO-639-1 code or from the drop down menu. It is a simple easy to use online dictionary for Linux. Open can open all internal links within Quick Lookup without moving any other browser.

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Qutebrowser Keyboard Driven Web Browser

Post last modified:March 18, 2021
Post category:Linux
Post author:Manikandan

QuteBrowser is a free and open source keyboard based vim like web browser for Linux, MacOS and Windows. It comes with very minimal GUI and uses pdf. js to display PDF files. It is released under GPL license and based on Python and PyQt5. It comes with privacy focus DuckDuckGo search engine by default and you can access .onion sites via tor. This browser is inspired by dwb and Vimperator. Qutebrowser uses QtWebEngine by default and install qtwebkit-plugins also. You can disable java script and use adblock.

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Interactive Graphing and Analysis with LabPlot

Post last modified:March 17, 2021
Post category:Linux
Post author:Manikandan

LabPlot is a free and open source graphing and analysis software for Windows, MacOS and Linux. Using LabPlot you can create, manage and edit plots. You can import data from spreadsheet or any other external files. You will get the final plots in several pixmap and vector graphic formats. It comes with project management, Worksheet, Latex syntax support, mathematical expressions support, linear and non-linear regression, numerical differentiation, interpolation, Fourier transform, convolution and Deconvolution of data sets, auto and cross-correlation of data sets and more.

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