Re: apt

>  $ sudo apt -y autoremove
> [sudo] password for bmike1:
> apt
> Usage: apt command [options]
>        apt help command [options]

> Commands:
>   add-repository   - Add entries to apt sources.list
>   autoclean        - Erase old downloaded archive files
>   autoremove       - Remove automatically all unused packages
>   build            - Build binary or source packages from sources
>   build-dep        - Configure build-dependencies for source packages
>   changelog        - View a package's changelog
>   check            - Verify that there are no broken dependencies
>   clean            - Erase downloaded archive files
>   contains         - List packages containing a file
>   content          - List files contained in a package
>   deb              - Install a .deb package
>   depends          - Show raw dependency information for a package
>   dist-upgrade     - Upgrade the system by removing/installing/upgrading
> packages
>   download         - Download the .deb file for a package
>   edit-sources     - Edit /etc/apt/sources.list with your preferred text
> editor
>   dselect-upgrade  - Follow dselect selections
>   full-upgrade     - Same as 'dist-upgrade'
>   held             - List all held packages
>   help             - Show help for a command
>   hold             - Hold a package
>   install          - Install/upgrade packages
>   list             - List packages based on package names
>   policy           - Show policy settings
>   purge            - Remove packages and their configuration files
>   recommends       - List missing recommended packages for a particular
> package
>   rdepends         - Show reverse dependency information for a package
>   reinstall        - Download and (possibly) reinstall a currently
> installed package
>   remove           - Remove packages
>   search           - Search for a package by name and/or expression
>   show             - Display detailed information about a package
>   showhold         - Same as 'held'
>   source           - Download source archives
>   sources          - Same as 'edit-sources'
>   unhold           - Unhold a package
>   update           - Download lists of new/upgradable packages
>   upgrade          - Perform a safe upgrade
>   version          - Show the installed version of a package