Windowsコマンドでファイル行数を数える

@echo off
if "%~1"=="" echo Usage: %~nx0 ^<SourceDirectory^> [FilenamePartern] & goto :EOF

set _fnp=%2
if "%_fnp%"=="" set _fnp=*.*

for /r %1 %%f in (%_fnp%) do (
    for /f "tokens=1-3 delims=:" %%i in ('find /c /v "" "%%f"') do (
        if "%%k"=="" echo %%f   %%j
        if not "%%k"=="" echo %%f   %%k
    )
)