See also
Debian Reference
Chapter 2. Debian package management
2.2.1. apt vs. apt-get / apt-cache vs. aptitude
https://www.debian.org/doc/manuals/debian-reference/ch02.en.html#_literal_apt_literal_vs_literal_apt_get_literal_literal_apt_cache_literal_vs_literal_aptitude_literal
Regards, Jörg.
