Show info: dpkg --info $package Show all files of a deb: dpkg -L $package Show all installed packages: dpkg -l Search for a file or path: dpkg -S htpasswd Show why a pack­age was installed: apitude why apache2-utils About deb files A deb file is a ar archive with this structure: $ ar t example.debdebian-binarycontrol.tar.xz (or .gz or…