There is a really cool commandline utility for Drupal called drush. I though that we need something like this for Moodle and I've created moosh (moodle plugin page) a while ago. Have a quick look at the documentation - it's fairly straight-forward what it does.
The moosh commands are plugable and it should be simple enough to create new ones, so fork me on github if you think there is something that may be useful for every-day Moodle development.
Now, what I really would like to share here & get your feedback is the code generation feature. I've implemented it just now and recorded a 9 minutes screencast to explain it. I don't know how do you code in Moodle but I keep forgetting function names, form element names, etc. - using code templates makes the development much quicker for me.
My idea (for the code generation part of moosh) would be to collect working and re-usable pieces of Moodle code and use them as kind of know-how. A template for creating new modules is a good start: https://github.com/moodlehq/moodle-mod_newmodule but we should have similar templates for blocks, etc.
All feedback welcome!