xfmtype(1) xfm file type tester


xfmtype -m magic_file [-f] filename ...


The xfmtype program reads a magic configuration file and tests each file in its command line to tell its type according to the configuration file.

The format of the configuration file is the similar to magic(5) with the differences described in Bxfm_magic(5).


-f file
Consider the following argument as a file, even if it begins with `-'.
-m file
Specifies a configuration file. You can specify more than one configuration file with several -m flags. They are read in the order in which they are found. Configuration files do not have effect until they are encountered in the command line. So, files to test in the command line before that switch will not be affected by it.


If no rule matches a specified field or the type cannot be determined because of other reasons, one of the following built in types is returned:

inode/x-unreadable The file could not be read.

inode/x-empty File size is zero.

text/plain The file looks like ACSII.
xfm will look into xfm_mime.type(5) for more guessing.

application/octet-stream Other regular file.
xfm will look into xfm_mime.type(5) for more guessing.

inode/directory A directory.

inode/chardevice A character device.

inode/blockdevice A block device.

inode/pipe A names pipe (fifo).

inode/socket A socket.

inode/default None of the above.


Bad configuration lines cause undefined behavior. In general they are silently ignored, but that is not guaranteed.
There are no warning or error message except for the regular expression syntax.
There should be a syntax checking mode.
All of the above apply to xfm too.


Copyright (c) 1995 CNM-US
Copyright (c) 1995 Juan D. Martin


Juan D. Martin ([email protected])
(but modified heavily by Bernhard R. Link)