This is a simple script made easily update different Linux flavours. So far, it only supports Arch Linux and Debian (and derivates), since these are the flavours of my choice.
Max 80 characters per line, two spaces instead of tabs, and probably quite dirty. Still, quite handy when you got to maintain various systems and you don't want to do it manually every time.
To know if it runs on your system: ./up -h
git update-index --assume-unchanged lib/distro_independent.zsource