Install aptitude-doc-en by entering the following commands in the terminal:
sudo apt update sudo apt install aptitude-doc-en
English manual for aptitude, a terminal-based package manager
aptitude is a package manager with a number of useful features, including: a mutt-like syntax for matching packages in a flexible manner, dselect-like persistence of user actions, the ability to retrieve and display the Debian changelog of most packages, and a command-line mode similar to that of apt-get. . This package contains the English version of the aptitude user's manual in HTML format.