A set of bare bones Objective-C templates that include nothing but an #import appropriate for the base class, an @interface and an @implementation. Useful if you find yourself frequently deleting copyright headers and default method implementations.
Create the user file templates directory if necessary and navigate to it:
mkdir -p ~/Library/Developer/Xcode/Templates/File\ Templates && cd "$_"
Clone the repository into a directory of your choice. This directory will be used as the category name in Xcode.
git clone https://github.com/mattstevens/xcode-clean-file-templates.git Clean
Xcode should automatically detect the new templates.