My BitBar script to display my current free drive space:

    #!/bin/bash
    df -h | awk '{print $4}' | head -n2 | tail -n1

(There has to be a neater way to do this...)

There is, of course. :)

    df -h | awk 'NR==2 {print $4}'

Thanks :)

+1 for Bitbar. Great tool, capable of displaying any console output in your menubar, so really easy to script in any language.

Bitbar rules. Currently use it to monitor CloudFormation runs on Amazon Web Services, and active turns on two different play-by-web board game sites.

I can't access the plugins on their main page. When I click nothing happens.

Looks like the plugins-page is actually the main page. You can choose some category from the list on the left.