robbyrussell/oh-my-zsh — pull request #2834 by jbdatko (2014-05-27 16:37:57+00:00)
Title: Adds itunes vol command.

Adds `itunes vol`, which takes an argument from 0 to 100 to set the volume from the shell.

I thought about a `vol up` and `vol down` but the argument style gives much more fine control of the volume.