I am a new Linux system admin user. How do I use apt command line utility for the package management on Ubuntu Linux LTS and Debian Linux server? How can I use the apt command for the package management? The apt is a second tool which overcomes some design mistakes of apt-get command. Hence you should use apt command. The apt command provides nicer interface including progress bars and colors at the CLI. It provides the same functionality as the specialized APT tools, like apt-get and apt-cache, but enables options more suitable for interactive use by default.