function script:exec {
    [CmdletBinding()]

	param(
		[Parameter(Position=0,Mandatory=1)][scriptblock]$cmd,
		[Parameter(Position=1,Mandatory=0)][string]$errorMessage = ("Error executing command: {0}" -f $cmd)
	)
	& $cmd
	if ($lastexitcode -ne 0)
	{
		throw $errorMessage
	}
}