Command Line Tools

opkgPackage management akin to apt-get, yum, rpm etc...
uciThis allows for managing the configuration system that open-wrt uses.
Firewall Rules

Automating the firewall rules can allow you to do some more advanced things that the UI doesn't allow easily.

Examples of what I use it for

  1. turning off inet for a specific child in my house
  2. turning on/off xbox internet access (again children)

You can do the following command to get a list of all config items in the firewall

uci show firewall