Test-Path is how you check if a file exists

> Test-Path Test_Path.md
true

Easy, right.

> Test-Path .\Test_Path.md
true

Let's check for two files....

> Test-Path .\Test_Path.md -and Test-Path .\histogram.md
Test-Path : A parameter cannot be found that matches parameter name 'and'.

No, that's not right, here's how you test for two paths:

> (Test-Path .\Test_Path.html) -and (Test-Path .\histogram.html)
true

And how do we test for the existence of a folder/directory, with the "PathType" Container...

> test-path readme.md -PathType Container
false

> test-path MyFiles -PathType Container
true