Subject: compression program

From: Freda B Birnbaum <[email-masked]>
Date: Sun, 20 Jan 2002 18:02:50 -0500 (EST)

Is there such a thing as a compression/decompression program that will
work on BOTH a Unix platform AND and Windows (at the DOS prompt)?

I've been using gzip / gunzip to compress / uncompress files on my Unix
account, but obviously if I save the zipped files to the PC, I can't use
gunzip there to unzip them.  Of course it takes lots less time to download
zipped files than unzipped ones.  But it would be nice to be able to unzip
them on the PC instead of uploading them back to the Unix platform.

The question arises because I use PC-Pine to save old email on the PC (or
ZIP disks).  PC-Pine is just terrific for this!

Freda Birnbaum, [email-masked]
"Call on God, but row away from the rocks"

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From: Kenneth Crudup <[email-masked]>
Date: Sun, 20 Jan 2002 15:09:08 -0800 (PST)

> work on BOTH a Unix platform AND and Windows (at the DOS prompt)?

Yeah, "pkzip"/"pkunzip". Get it from pkware.com for MS, "freshmeat" for *NIX.

	-Kenny

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From: Freda B Birnbaum <[email-masked]>
Date: Sun, 20 Jan 2002 18:24:31 -0500 (EST)

> Yeah, "pkzip"/"pkunzip". Get it from pkware.com for MS, "freshmeat" for

Thanks!!  (Where do I find "freshmeat"?)

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From: Kenneth Crudup <[email-masked]>
Date: Sun, 20 Jan 2002 15:45:26 -0800 (PST)

> Thanks!!  (Where do I find "freshmeat"?)

freshmeat.net ; plugin "unzip" and ... ah hell, here's the final URL:

  http://www.info-zip.org/pub/infozip/UnZip.html

	-Kenny

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From: Dan Hatton <[email-masked]>
Date: Sun, 20 Jan 2002 23:55:51 +0000 (GMT)

gzip is available for DOS from

http://www.gzip.org/

Something to watch out for: the way my DOS gzip is installed, which was
the default, the uncompress command in the as-installed state is gzip -d,
or gunzip -d, not plain gunzip.

Dan Hatton

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On Sun, 20 Jan 2002, Freda B Birnbaum wrote:

> gunzip there to unzip them.

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From: Andy Malato <[email-masked]>
Date: Sun, 20 Jan 2002 19:10:49 -0500 (EST)

gzip is also available for Windows, try installing cygwin..

	---Andy

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From: Freda B Birnbaum <[email-masked]>
Date: Sun, 20 Jan 2002 19:18:14 -0500 (EST)

>   http://www.info-zip.org/pub/infozip/UnZip.html

THANK you!!

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From: Freda B Birnbaum <[email-masked]>
Date: Sun, 20 Jan 2002 19:19:01 -0500 (EST)

> or gunzip -d, not plain gunzip.

Many thanks!!

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From: Freda B Birnbaum <[email-masked]>
Date: Sun, 20 Jan 2002 20:18:22 -0500 (EST)

> gzip is also available for Windows, try installing cygwin..

Great, thanks!

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From: Arthur Snoke <[email-masked]>
Date: Sun, 20 Jan 2002 21:54:57 -0500 (EST)

The program Winzip can handle both gzip compression and Unix tar
compression on Windows.  On a Mac, the Stuffit Expander can also handle
them both.

On many Unix platforms (including Sun Solaris 2.8) the zip and unzip
utilities are installed.  Or they can be gotten for any platform from a
Info-ZIP which I got to through the TeX CTAN search engine.  (Google would
work as well, I would guess.)

I learned the hard way that gzip and zip are not the same: in particular,
gzip will compress a file usually more efficiently than the unix compress,
but it does not work on directories.  zip seems like a comparison of the
Unix tar and gzip (based on just a couple of tests).  zip/unzip are based
on what I think is PKZIP format.  It is a bit unfortuante that "zip" is
used for two slightly different compression algorithms -- plus the Iomega
drive.

I am preparing software packages whicwill be put on CDs and are intended
to be readable on multiple platforms, which is why I have played with
these different packages.  If anyhone differs with what I calim or has any
alternative suggestions, please share.

Arthur Snoke
[email-masked]

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From: Freda B Birnbaum <[email-masked]>
Date: Sun, 20 Jan 2002 22:05:27 -0500 (EST)

On Sun, 20 Jan 2002, Arthur Snoke wrote:

[...]

> these different packages.  If anyhone differs with what I calim or has
> any alternative suggestions, please share.

Thanks for the additional info.  Do keep us posted!

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From: "Mike A. Harris" <[email-masked]>
Date: Wed, 23 Jan 2002 15:47:15 -0500 (EST)

On Sun, 20 Jan 2002, Freda B Birnbaum wrote:

>Date: Sun, 20 Jan 2002 18:02:50 -0500 (EST)
>From: Freda B Birnbaum <[email-masked]>
>To: Pine Discussion Forum <[email-masked]>
>Content-Type: TEXT/PLAIN; charset=US-ASCII
>Subject: compression program
>

Well, you could either use tar and gzip/gunzip in DOS - after 
downloading them of course, or you could use zip/unzip in both 
OS's.

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From: "Mike A. Harris" <[email-masked]>
Date: Wed, 23 Jan 2002 15:47:49 -0500 (EST)

On Sun, 20 Jan 2002, Kenneth Crudup wrote:

>Date: Sun, 20 Jan 2002 15:09:08 -0800 (PST)
>From: Kenneth Crudup <[email-masked]>
>Subject: Re: compression program
>

Why not just use the open source zip/unzip programs instead?

---

From: Kenneth Crudup <[email-masked]>
Date: Wed, 23 Jan 2002 19:18:06 -0800 (PST)

> Why not just use the open source zip/unzip programs instead?

Those are the ones on freshmeat.

	-Kenny

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From: "Mike A. Harris" <[email-masked]>
Date: Thu, 24 Jan 2002 18:05:54 -0500 (EST)

On Wed, 23 Jan 2002, Kenneth Crudup wrote:

>Date: Wed, 23 Jan 2002 19:18:06 -0800 (PST)

Yes, but:

  > >Yeah, "pkzip"/"pkunzip". Get it from pkware.com for MS, "freshmeat" for *NIX."

was what I was commenting on.  pkzip/pkunzip is closed source.  
zip/unzip are the open source alternatives.  I was just curious 
why one would want to use pkzip/pkunzip instead of zip/unzip.