Provided by: grfcodec_6.0.3-1_amd64
GRFDiff — A tool to create a binary GRF diff from to GRFs.
grfdiff [-hnxyv] [-l numbers] [-o GRF‐File] Original‐GRF‐file New‐GRF‐file Compare the two GRF files and produce a GRD file containing only the sprites from the second file that are different from the first file. GRFDiff makes a .GRD file with the same basename as the new GRF file.
-h Display the help message. -l numbers Save the sprites with these numbers in the .GRD instead of finding the modified sprites. With this option, the first GRF file can be omitted. Format of the numbers: <from1>[‐<to1>][,<from2>[‐<to2>]]... e.g. 1‐5,8,20‐31 (must be increasing numbers). -n Only show a list of modified sprites, don't make a .GRF file. -x Make a self‐extracting (.EXE) file instead of a .GRD. -y Answer 'y' to all questions. -v Display the version. You can specify several sets of GRF files along with their -l options by separating them with a double‐dash `--'. The result will be written to a single .GRD file. Only -l is valid after the first set.
The documentation in /usr/share/doc/grfcodec/
GRFDiff was written by Josef Drexler. This manual page was written by Remko Bijker.
GRFDiff is Copyright (C) 2003 by Josef Drexler <email@example.com> August 05, 2010