![]() We'll use this, along with the $ScriptFolder variable, in the next piece where we check to be sure those files are present. The second line creates an array of file names that are required for the script to run properly. Normally, this is dumped to the console but it can also be redirected by other commands. Write-Output actually generates output.This is used to present messages to the user, and is not included in the script's output if the output gets redirected. This can be used to display the contents of a text file at the console or, as in this script, pass the contents along the pipeline to be used with other commands. It gets the contents of a specified object - usually a file. Get-Content does what it says on the tin.If anything goes wrong with the script block specified for try, the catch block will run. catch statements help with error handling. ![]() Once something happens that causes the condition to no longer be true when the script block is finished, the loop exits. while statements allow you to continuously repeat a script block so long as a certain condition is met.Switch statements also use the $_ variable to refer to the current item being processed. You can also, optionally, specify a default block which will only run if no other conditions are matched. Switch will check an object against several conditions, and run whatever script blocks are specified for conditions that the object matches. switch statements are like if statements with more choices.else statements allow you to perform an operation only if certain conditions are met, and (optionally) specify what should be done when that condition is not met. Within a ForEach-Object script block, the $_ variable is used to refer to the current item being processed. ForEach-Object takes an array, or list, of objects and performs the specified operation on each of them.
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