mren - mtools utility to rename an existing DOS file
mren [-v] sourcefile targetfile
-v Specifies verbose mode. The new file name is displayed if the name
supplied is invalid.
The mren command renames an existing file on a DOS file system. You can
also use the mren command to rename directories. Reasonable care is taken
to create a valid DOS file name. If an invalid DOS targetname is speci-
fied, the mren command changes the name and, if the -v option is specified,
prompts the user to accept or reject the new name.
The path component of the targetfile argument, if supplied, is ignored.
That is, you cannot use the mren command to move a file from one subdirec-
tory to another.
DOS subdirectory names that contain the '/' or '\' separator are supported.
If you use the '\' separator or wildcards, you must enclose file names in
quotes to protect them from the shell.
The mcd command can be used to establish the device and the current working
directory (relative to DOS), otherwise the default is A:\.
Not all UNIX file names are supported in the DOS world. The mren command
may have to change UNIX names to fit the DOS file name conventions. The
following table shows some examples of file name conversions:
UNIX name DOS name Reason for the change
thisisatest THISISAT file name too long
file.stuff FILE.STU extension too long
prn.txt XRN.TXT PRN is a device name
.abc X.ABC null file name
hot+cold HOTXCOLD illegal character
You cannot use the mren command to move a file from one subdirectory to
The following exit values are returned:
The following environment variables affect the execution of mren:
If set, this variable names the file that contains the name of the
current mtools working directory as established by the mcd command. If
this variable is not set, the file $HOME/.mcwd is used.
Contains the name of the current mtools working directory as esta-
blished by the mcd command. If this file does not exist, the default
mtools working directory is A:\.
Commands: mcd(1), mtools(1)