for /r オプション
| FOR /R - Loop through files (recurse subfolders) |
| For /R - Loop through sub-folders - Windows CMD - SS64.com : http://ss64.com/nt/for_d.html |
| FOR /R [[drive:]path] %variable IN (set) DO command [command-parameters] |
| for DOS command help : http://www.computerhope.com/forhlp.htm |
| for /R %x in |
| For - DOS コマンド一覧 - Programming Field : http://www.pg-fl.jp/program/dos/doscmd/for.htm |