# Pass a mandatory parameter to a PowerShell script

# This example requests a single string, stored as a variable
# e.g. .\passmandatoryparameter.ps1 -FavouriteColour Purple
# If the parameter isn't provided (e.g. .\passmandatoryparameter.ps1), the script will request it,
# but if nothing is passed the script will throw an error.

param(
    [Parameter(Mandatory=$true)]
    [string]$FavouriteColour
)

Write-Host "You should only see me if you provided a string."
Write-Host "By the way, you said your favourite colour is $FavouriteColour"