What is script means?

Answer 1

many programming languages are script languages. like Bash, PHP, Python ...
it means that your code is not compiled into a binary form .
it just gets interpreted by the script engine to run .
on the other hand, languages like C, C++. the source code and the executable binary are two separate files.
source code ----- compiles----> to binary ---> run the binary.

Answer 2

A scripting or script language is a programming language that supports scripts, programs written for a special run-time environment that automate the execution of tasks that could alternatively be executed one-by-one by a human operator. Scriptinglanguages are often interpreted (rather than compiled)