According to Cliff :
On Sun, 01 Jan 2006 21:49:23 +0000, (DoN.
Nichols) wrote:

As for "compact" -- that may be truly antique, as I don't have
any examples of it.

Check HP-UX, probably among others.
"The command compact of UNIX implements the dynamic Huffman coding"

http://docs.hp.com/en/B9106-90007/compact.1.html

Hmm ... pretty old program, if the man page is still concerned
about filesystems which limit filenames to 14 characters (the old
filesystem which came with v7 unix, and early SysV variants as well.

I'm somewhat frustrated by the HP-UX (or the web page format)
eliminating the "Last change: 9 Sep 1999" entry at the bottom of each
page, which might make it easier to judge just how old compact(1)
happens to be. That one was from Solaris 10. Solaris 2.6 shows: "Last
change: 20 Dec 1996" Falling back to SunOs 4.1.4, I get: "Last change: 9
September 1987" and OpenBSD shows it as: "April 18, 1994". Of course,
those dates apply to the last change of the man page, not the program,
but at least some of the changes of the man page are to reflect changes
in the program.

BTW, Compress & Gzip seem to get about the same compression
ratios, at least on the binary files I once tested such on. IIRC
Gzip *may* have been slightly faster in execution one way
(comressing) and slower the other (uncompressing).

I've seen gzip(1) usually giving a significant improvement over
compress(1) on most file types -- at least on SunOs and Solaris (even on
the Sun-3 (68020) machines).

DoN.
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