HyperText Markup Language (HTML) is the standard markup language for creating web pages and web applications. With Cascading Style Sheets (CSS), and JavaScript, it forms a triad of cornerstone technologies for the World Wide Web. Web browsers receive HTML documents from a webserver or from local storage and render them …

GNU Parted manipulates partition tables. This is useful for creating space for new operating systems, reorganizing disk usage, copying data on hard disks and disk imaging. The package contains a library, libparted, as well as well as a command-line frontend, parted, which can also be used in scripts.

Run

parted …

GNU Fdisk is used for creating, deleting, resizing, moving, checking, and copying disk partitions and their file systems.

Install

sudo apt install fdisk

Run

fdisk /dev/sda

Gnu Fdisk

The Linux Unified Key Setup (LUKS) is a disk encryption specification created by Clemens Fruhwirth in 2004 and was originally intended for Linux.

Install

sudo apt install cryptsetup

Encrypt

sudo cryptsetup luksFormat /dev/sdb1
sudo cryptsetup open /dev/sdb1 disk
sudo mkfs.ext4 /dev/mapper/disk

(Un)Mount

sudo cryptsetup …

Mozilla Thunderbird is a free and open-source,[11] cross-platform email client, news client, RSS, and chat client developed by the Mozilla Foundation. The project strategy was modeled after that of the Mozilla Firefox web browser. It is installed by default on Ubuntu desktop systems.

Install

apt install thunderbird enigmail

Thuderbird …

The GNU Find Utilities (Findutils) are the basic directory searching utilities of the GNU operating system. These programs are typically used in conjunction with other programs to provide modular and powerful directory search and file locating capabilities to other commands. Such as find, locale, updatedb and xargs.

Install

sudo apt …

Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline—modeling, rigging, animation, simulation, rendering, compositing and motion tracking, even video editing and game creation. Advanced users employ Blender’s API for Python scripting to customize the application and write specialized tools …

The goal of the GNU PDF Suite project is to develop and provide a free, high-quality and fully functional set of libraries and programs that implement the PDF file format.

GNU PDF