
     ant identifier at a small fixed offset into the file can usually be
     described in this way.  The information identifying these files is read
     from /etc/magic and the the compiled magic file
     /usr/share/misc/magic.mgc, or the files in the directory
     /usr/share/misc/magic if the compiled file does not exist. In addition,
     if $HOME/.magic.mgc or $HOME/.magic exists, it will be used in preference
     to the system magic files.

     If a file does not match any of the entries in the m