NAME
dfork (rfork) - isolate data (resource) fork

SYNOPSIS
dfork [ infile [ outfile ]]
dfork -i file
rfork [ infile [ outfile ]]
rfork -i file

DESCRIPTION
Macintosh files have a data fork and/or a resource fork.

dfork outputs just the data fork of infile (or standard input) to
outfile (or standard output).

rfork provides the same service for the resource fork.

infile (outfile) may be entered as dash, "-", to specify standard
input (standard output).

If the option -i is given, dfork (rfork) will replace each
specified file with its data (resource) fork. If a directory is
named, each file in that directory will be processed, however, no
recursion is performed for subdirectories.