mren
mren功能说明：更改MS-DOS文件或目录的名称，或是移动文件或目录。
语 法：mren [源文件或目录...][目标文件或目录]
补充说明：mren为MS-DOS工具指令，模拟MS-DOS的ren指令，可更改MS-DOS文件或目录名称。除此之外，ren也可移动文件或目录，但仅限于在同一设备内。
mren
mren [options] oldfile newfile
Rename an MS-DOS file or directory. See rename and mtools for more information.
Options
Specify the action to take if the specified new name already exists. See mmd for the possible clash options.
Operate verbosely, showing the names of files and directories as they are renamed.
Print version information and exit.