pkcon
Command line client for PackageKit console program used by Discover and Gnome software and alternative to 'apt'.
TLDR
Install a package
$ pkcon install [package]
Remove a package
$ pkcon remove [package]
Refresh the package cache
$ pkcon refresh
Update packages
$ pkcon update
Search for a specific package
$ pkcon search [package]
List all available packages
$ pkcon get-packages