As you continue to gain invaluable Powershell scripting experience, there will be certain concepts that will notably advance your expertise. One of those areas is the use of functions!

Functions in Powershell are groups of code collected in a single location that can be referenced anywhere in your code.

In this lesson, we’ll examine the following:

• how to write functions
• the components of a function
• internal versus external functions
• cases where scripts can benefit from the use of functions.