Hello Wilfred!
** On 28.04.20 - 09:57, Wilfred van Velzen wrote to August Abolins:
I found out that gzip -d <file> complains about the bundle suffixes.
That's right. Despite the name gzip is not a compressor that can
handle .zip files. Gzip is for .gz files. Besides gzip is just a
compressor not an archiver. On it's own it can only compress 1 file
at a time, so you can't create bundles with it (that contain more
than 1 file)...
CRAP. Thanks for the reminder.  *Now* I remember why I bothered to get it.
Meanwhile, why don't these effen things provide something useful in the  
the CLI-invoked help:
gzip -h
gzip 1.2.4 (18 Aug 93)
usage: gzip [-acdfhlLnNrtvV19] [-S suffix] [file ...]
 -a --ascii       ascii text; convert end-of-lines using local conventions
 -c --stdout      write on standard output, keep original files unchanged
 -d --decompress  decompress
 -f --force       force overwrite of output file and compress links
 -h --help        give this help
 -l --list        list compressed file contents
 -L --license     display software license
 -n --no-name     do not save or restore the original name and time stamp
 -N --name        save or restore the original name and time stamp
 -q --quiet       suppress all warnings
 -r --recursive   operate recursively on directories
 -S .suf  --suffix .suf     use suffix .suf on compressed files
 -t --test        test compressed file integrity
 -v --verbose     verbose mode
 -V --version     display version number
 -1 --fast        compress faster
 -9 --best        compress better
 file...          files to (de)compress. If none given, use standard input.
No real clues, zip nada ziltch, that this is a .gz processor.  I shouldn't   have to go to google to find out what it is. google wasn't around in 1993.
I mean, I appreciate a fine -h summary like the above, but it essentially  
it only speaks to the geekiest among us that have not depleted any brain   cells.
I'm starting sound like a grumpy Cheese Burger [*].
FWIW, it apprears that this version can work with multiple files.   
Starting at the 3rd parameter, [file ...] indicates that we can list a  
bunch of files and "compress" them in a bundle.
[*] If nobody knows what I mean by the Cheese Burger reference you don't  
know what you are missing.  I'll explain later.
  ../|ug
--- OpenXP 5.0.43
 * Origin: ----------Do Not Fold, Spindle or Mutilate.---------- (2:221/1.58)