New Post: "DoesItemExist" Checks if the registry key, registry entry, file, or directory exists

Function DoesItemExist{
<#
    .SYNOPSIS
        Check if the item exists. Can check directories, files, registry keys, registry entries.
        Returns $true or $false.
    .PARAMETER Path
        The path to the file, directory, registry key, or registry value that you want to see if it exists.
    .PARAMETER regEntry
        Name of the registry entry you want to check.
    .EXAMPLE
        DoesFileExist -Path "C:\Windows\Temp\Test\"
    .EXAMPLE
        DoesFileExist -Path "C:\Windows\Temp\Install.log"
    .EXAMPLE
        DoesFileExist -Path "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\"
    .EXAMPLE
        DoesFileExist -Path "HKLM:\Software\Microsoft\Windows NT\CurrentVersion\" -regEntry "RegisteredOrganization"
#>
    param(
        [Parameter(Mandatory=$true, HelpMessage="Path to file, directory, or registry key.")]
        [ValidateNotNullOrEmpty()]
        [String[]]
        $Path,
        [Parameter(Mandatory=$false, HelpMessage="Registry entry")]
        [ValidateNotNullOrEmpty()]
        $regEntry = $null
    )
    if($regEntry -ne $null){
        if (Test-Path $Path) {
            $Key = Get-Item -LiteralPath $Path
            if ($Key.GetValue($regEntry, $null) -ne $null) {
                Write-Log -Text "[DoesItemExist] Registry entry: $regEntry exists."
                $true
            } else {
                Write-Log -Text "[DoesItemExist] Registry entry: $regEntry does not exist."
                $false
            }
        } else {
            Write-Log -Text "[DoesItemExist] Registry path to $regEntry does not exist."
            $false
        }
    }
    else{
        $Item = Get-ItemProperty $Path -ErrorVariable Error -ErrorAction SilentlyContinue
        if([IO.File]::Exists($Path) -eq "True"){
            Write-Log -Text "[DoesItemExist] File exists at: $Path"
            $true
        }
        elseif([IO.Directory]::Exists($Path) -eq "True"){
            Write-Log -Text "[DoesItemExist] Directory $Path exists."
            $true
        }
        elseif($Error.Count -eq 0){
            Write-Log -Text "[DoesItemExist] Registry path at $Path exists."
            $true
        }
        else {
            Write-Log -Text "[DoesItemExist] Item: $Path does not exist."
            $false
        }
        $Error.Clear()
    }
}