I’ve got a few hundred 7z archives that were recompressed with a very high compression level, and it took a very long time to process them all. While inspecting the original archives, I found that many of the non-executable files had the executable permission bit set, and these permissions were preserved in the recompressed archives.
As far as I know, 7z rn is the only command that modifies file metadata inside an existing archive, but it only affects filenames, which is effectively renaming files right in the archive. Is there any way to modify other archived file metadata, such as permission bits or timestamps, without recreating the archive (i.e. without using 7z a or 7z u)?
