$PATH A variable that contains a list of directories that will be searched for executable files when a user enters a command.

2FA See two-factor authentication.


absolute path The location of a file or directory that starts from the root of the filesystem and therefore begins with a slash character (/).

accessibility options A feature provided on desktops that makes it easier for individuals with physical limitations to work with the desktop.

address class ranges The primary subnets of Class A, B, C, D, and E networks.

Advanced Package Tool (APT) A package management system for Debian-derived systems that wraps lower-level tools and provides easy searching of remote package sources, including downloading any needed dependencies. ...

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