QUOTE
Script
Also known as: Batch File, shell script
Computer code that is contained in a file and can be directly executed to run a sequence of commands on the computer as if it was a program. The difference between this and a binary executable is that it does not have to be compiled in order to execute it.
BC Glossary
Which means they automate repetitive tasks.
These links may help you along In apple scripts are called
AppleScript.
AppleScript, the language of automation. Scripting Mac OS XThis virtual site is a collaborative effort to provide a starting point for information on Macintosh scripting.
ScriptWebHope this was helpful