From jot man page:
The jot utility is used to print out increasing, decreasing, random, or redundant data, usually numbers, one per line.
I use jot within bash to provide sequences of both numbers and text, the later is really handy for generating a series of filenames.
The posts below include several examples of jot:
The Multipurpose jot Command
A primer on using jot
OCUDL is an experiment to bring user defined literals to Objective-C. A literal is a shorthand expression that creates a value of a certain type. For example, 25ul creates an unsigned long of 25, and @”hello” creates an NSString of hello. User defined literals bring this brevity and expressivity to our own types.
Dustin has a post that is well worth reading that describes the details of OCUDL.
New to git? Gary Rennie is the developer of githug:
Githug is designed to give you a practical way of learning git. It has a series of levels, each utilizing git commands to ensure a correct answer.
And if you are so inclined, you can also write you own game levels through the embedded DSL.
Jonas Budelmann on his open source project Masonry:
Harness the power of AutoLayout NSLayoutConstraints with a simplified, chainable and expressive syntax. Supports iOS and OSX Auto Layout.