Error Handling Discussion

Ed offers this example of using $ErrorActionPreference:

Try {

$ErrorActionPreference = "Stop"

Copy-Item -Path $myfile -Destination $folder -Force }

CATCH [System.Exception]{

MD $folder | Out-Null

Copy-Item -Path $myfile -Destination $folder -Force }

FINALLY { $ErrorActionPreference = "Continue" }

You can also do this:

&{
Try {

$ErrorActionPreference = "Stop"

Copy-Item -Path $myfile -Destination $folder -Force }

CATCH [System.Exception]{

MD $folder | Out-Null

Copy-Item -Path $myfile -Destination $folder -Force }
}

Which isolates the $ErrorActionPreference in it’s own scope. You don’t have to worry about adding a FINALLY block to set it back. Since $ErrorActionPreference never changed in the parent scope, you also don’t have to worry about whether setting it to ‘Continue’ will change what it was originally set to.