Here is my Katas for creating BASH programs that work. Nothing is new here, but from my experience pepole like to abuse BASH, forget computer science and create a Big ball of mud from their programs.
Here I provide methods to defend your programs from braking, and keep the code tidy and clean.
Read the full thing at http://www.kfirlavi.com/blog/2012/11/14/defensive-bash-programming/
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