["?DebianWikiTopics"]
Shell means:
A Program that offers you CommandLine functionality. In some cases its also called CommandLineInterface (CLI for short), ["terminal"] or ["console"]. ["Bash"] is the shell used by default in ["Debian"].
Shell can also be used as abbreviation for 'shell account', a personal account that gives a user access to a Unix shell on another machine, usually through ["ssh"]. (For example: http://jaguar.garofil.be/ is a shell account provider that provides free debian shells). See Shell_account