achfile - change type and/or creator of Apple Macintosh files (netatalk format)
SYNOPSIS
achfile [ -t type ] [ -c creator ] file ...
DESCRIPTION
achfile changes the Macintosh type and/or creator of the file arguments which have a corresponding .AppleDouble file.
OPTIONS
-t type
change the type.
-c creator
change the creator.
DIAGNOSTICS
returns exit status 0 if all files changed successfully
SEE ALSO
afile(1), afpd(1)
Source