apt − Advanced Package Tool apt APT is a management system for software packages. It is still under development; the snazzy front ends are not yet available. In the meantime, please see None. None. apt returns zero on normal operation, decimal 100 on error. This manpage isn’t even started. See <http://bugs.debian.org/apt>. If you wish to report a bug in please see /usr/share/doc/debian/bug‐ reporting.txt or the command. apt was written by the APT team <apt@packages.debian.org>.