<#
    .SYNOPSIS
    Creates a new temporary directory.
#>
function New-TemporaryDirectory {
    $path = Join-Path ([System.IO.Path]::GetTempPath()) ([System.IO.Path]::GetRandomFileName());
    New-Item -ItemType Directory $path;
}

<#
    .SYNOPSIS
    Removes desktop icons which apply to the specified pattern.

    .PARAMETER Pattern
    The pattern to match the icons to delete.
#>
function Remove-DesktopIcon {
    param(
        [string] $Pattern
    )

    $path = "Desktop/$Pattern";

    foreach ($userDir in @($(~), $env:PUBLIC, "$env:SystemDrive/Users/Default")) {
        $fullName = "$userDir/$path";

        if (Test-Path -PathType Leaf $fullName) {
            Remove-Item $fullName;
        }
    }
}