get1resource

A tool for extracting resources from Mac resource forks

This is a command-line tool for modern macOS that enables extracting one or more resources from a file containing a classic Mac OS resource fork (or a resource map in a data fork).

Usage

usage: get1Resource [options] input-file resource-type [resource-ID]

With a resource ID, extract that specified resource to a new file or stdout.
Without a resource ID, extract all resources of that type.

Options:

• --help Print this text.
• -useDF Read from the data fork of the input-file. Default is to read the resource fork.
• -o OUTPUT_PATH Write output to OUTPUT_PATH. For one resource, this is a file; for all resources of a type, it is a folder to place output files in.

Difference from DeRez

DeRez is an Apple developer tool (tracing its lineage back to MPW) that creates a Rez source file describing the contents of one or more resources. DeRez's -only option can be used to extract only certain resources.

DeRez always produces Rez source code. It is meant to be used for recovering a resource from a build artifact for comparison to original source, or replacement of that original source with a (Res)Edited version.

get1resource extracts the raw, binary contents of the resource. A hex-dump of its output will be the same as the hex-dump shown in ResEdit.