だれかの役に立つかも知れないし、せっかくだからメモ兼ねてまとめてみよう!
set nowdatetime=%date:~0,4%%date:~5,2%%date:~8,2%%time:~0,2%%time:~3,2%%time:~6,2% :mergetxt IF %1.==. goto :eof type %1>>"%~dp1merge_%nowdatetime: =0%.txt" shift goto mergetxt