Why use Scripting Languages?

• Quite often we wish to automate a simple task - running several programs in a row, installing programs, even writing a simple script or GUI to run a program that needs many parameters.
  
  
• Scripting languages allow us to write such a thing quickly, and run it without any compilation. They also have good support for launching processes and controlling them, parsing text files, etc.
  
  
• With a script, there's never the question of "where is the source?" or "did i re-compile it after i fixed that bug?" - the script _is_ the source.