Description:

The etckeeper program is a tool to let /etc be stored in a git,
mercurial, bzr or darcs repository. It hooks into APT to automatically
commit changes made to /etc during package upgrades. It tracks file
metadata that version control systems do not normally support, but
that is important for /etc, such as the permissions of /etc/shadow.
It's quite modular and configurable, while also being simple to use if
you understand the basics of working with version control.

The default backend is git, if want to use a another backend please
install the appropriate tool (mercurial, darcs or bzr). To use bzr as
backend, please also install the etckeeper-bzr package.

To start using the package please read
/usr/share/doc/etckeeper-1.18.18/README