The apt command in Debian stands for Advanced Package Tool, and is the standard means of installing software on Debian-based distributions.
It formerly functioned primarily through the "apt-get" command, but as of 2017 that functionality has been rolled into "apt" with a slightly more friendly UI. "apt-get" is still available for non-interactive applications.
- list all files installed by a package:
dpkg-query -L <package-name>