One of the biggest advantages of Mac OS X’s UNIX heritage is the huge range of open source scripting languages available. Scripting languages are often the ideal tool if you want to manipulate text, manage jobs, or link together disparate components without resorting to a compiled language like C++ or Objective-C. Scripting languages are a great tool for system administrators, application developers, and pretty much any user who needs to perform complex or repetitive tasks, because they were invented to solve these types of problems more quickly than can be done with general-purpose languages.
Link: developer.apple.com
