関連ワード:  bat script to delete files in folder    bat script to delete files    bat script to delete files older than x days    batch script to delete files older than 30 days    batch script to delete files older than 6 months    batch script to delete files from multiple folders    batch script to delete files in a folder except one    batch script to delete files and subfolders    batch script to delete files older than x minutes    batch script to remove files older than x days