PowerShell: Rename Files, Space to Lowline 📜

Functions to rename file from space to lowline _.

function xah-rename-file-space-to-lowline {
    # .DESCRIPTION
    # pipe files to this function to rename it.
    # .EXAMPLE
    # dir | xah-rename-file-space-to-lowline
    # .NOTES
    # Created: 2023-03-01
    # Version: 2025-04-03
    # .LINK
    # http://xahlee.info/powershell/powershell_rename_file_space_to_lowline.html
    process {
        if ($_ ) {
            if ($_.name.contains(" ")) {
                $newname = $_.name.replace(" ", "_")
                Write-Host ($_.name , " →`n$newname")
                Rename-Item $_ $newname
            }
        }
        else {
            Write-Host 'no input. pipe file to me.'
        }
    }
}