Hash a file easily with PowerShell

Get-FileHash.ps1

function FileSelector {
# Define a function that allows the user to select files.
# Credit: https://4sysops.com/archives/how-to-create-an-open-file-folder-dialog-box-with-powershell/
    $FileBrowser = New-Object System.Windows.Forms.OpenFileDialog -Property @{
        InitialDirectory = [Environment]::GetFolderPath('Desktop')
    }
    $null = $FileBrowser.ShowDialog()
    return $FileBrowser
}

$selectedFile = FileSelector
if (-Not ($selectedFile.FileName)) {break}

Get-FileHash -Path $selectedFile.FileName | fl