Re: Zip list

From	"Carlos E. R." <robin_listas@es.invalid>
Newsgroups	comp.os.linux.misc
Subject	Re: Zip list
Date	2023-02-17 19:06 +0100
Message-ID	<k59u21FbtguU3@mid.individual.net> (permalink)
References	<tsljq7$39q0j$1@dont-email.me> <tsnlq3$3jpur$1@dont-email.me> <op.10ioi4tza3w0dxdave@hodgins.homeip.net> <0LqcnRugEt7aNnL-nZ2dnZfqnPGdnZ2d@giganews.com>

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On 2023-02-17 17:28, Robert Heller wrote:
> At Fri, 17 Feb 2023 10:41:18 -0500 "David W. Hodgins" <dwhodgins@nomail.afraid.org> wrote:
>> On Fri, 17 Feb 2023 05:44:18 -0500, Nuno Silva <nunojsilva@invalid.invalid> wrote:


>> Using zipinfo is interpreted the same as using "unzip -Z". There are no other
>> differences according to the synopsis in the man page for zipinfo.
>>
>> The reason for the differences between the two man pages, is that the man page
>> for zipinfo only shows the unzip options that are relevant to listing information
>> about the archive.
>>
>> Which to use depends on personal preferences. Do you prefer typing "unzip -Z"
>> or typing "zipinfo"?
>>
>> As to why it's done this way, I don't know. Could be that at one time they
>> were two different programs, or it could be that zipinfo was added as easier
>> to remember then using "unzip -Z". You'd have to dig into the history to find
>> that out.
> 
> Zip / Unzip have a bit of a history and came from outside of the UNIX world
> (they originated in the MS-DOS world). I suspect that due to MS-DOS memory /
> disk limitations the *original* programs for Zip files had to be limited to
> single functions (just building the zip file, just extracting, just listing,
> etc.).  Along with a different philosophy about how to organize software.

Er... that's not my remembrance. I recall a single program, called 
"pkzip". Maybe there was an older zip/unzip, but what we used before 
pkzip was another format, arc.

<https://en.wikipedia.org/wiki/PKZIP>

PKZIP is a file archiving computer program, notable for introducing the 
popular ZIP file format. PKZIP was first introduced for MS-DOS on the 
IBM-PC compatible platform in 1989. Since then versions have been 
released for a number of other architectures and operating systems. 
PKZIP was originally written by Phil Katz and marketed by his company 
PKWARE, Inc starting in 1986. The company bears his initials: 'PK'.

<https://en.wikipedia.org/wiki/ARC_(file_format)>

They mention pkarc.

<https://en.wikipedia.org/wiki/Phil_Katz#PKARC_and_PKWARE>

> Tar originated in the UNIX world, and even though the original UNIXes were on
> 16-machines (PDP-11), there was less memory constraints.  Also, tar (even
> today) does not include the compression/decompression code -- that is handled
> by separate programs via a pipe, so tar's core code was/is fairly small.

and tar.gz is vulnerable. A single byte error in the archive file, and 
the entire thing is lost.

-- 
Cheers,
        Carlos E.R.

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Thread

Zip list db <dieterhansbritz@gmail.com> - 2023-02-16 16:57 +0100
  Re: Zip list Bobbie Sellers <bliss@mouse-potato.com> - 2023-02-16 08:12 -0800
    Re: Zip list "25B.R866" <25B.R866@noaaba.net> - 2023-02-18 03:59 -0500
      Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-18 16:16 -0500
        Re: Zip list "25B.R866" <25B.R866@noaaba.net> - 2023-02-18 21:40 -0500
          Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-19 21:13 -0500
            Re: Zip list Computer Nerd Kev <not@telling.you.invalid> - 2023-02-20 17:19 +1000
              Re: Zip list "Carlos E. R." <robin_listas@es.invalid> - 2023-02-20 11:38 +0100
  Re: Zip list Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2023-02-16 16:31 +0000
  Re: Zip list Robert Heller <heller@deepsoft.com> - 2023-02-16 16:51 +0000
    Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-16 19:21 -0500
  Re: Zip list "Nuno Silva" <nunojsilva@invalid.invalid> - 2023-02-17 10:44 +0000
    Re: Zip list "David W. Hodgins" <dwhodgins@nomail.afraid.org> - 2023-02-17 10:41 -0500
      Re: Zip list Robert Heller <heller@deepsoft.com> - 2023-02-17 16:28 +0000
        Re: Zip list "Carlos E. R." <robin_listas@es.invalid> - 2023-02-17 19:06 +0100
          Re: Zip list Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2023-02-17 19:32 +0000
            Re: Zip list Bobbie Sellers <bliss@mouse-potato.com> - 2023-02-17 11:56 -0800
              Re: Zip list "Carlos E. R." <robin_listas@es.invalid> - 2023-02-17 21:10 +0100
            Re: Zip list "Carlos E. R." <robin_listas@es.invalid> - 2023-02-17 20:59 +0100
            Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-18 10:12 +0000
              Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-18 12:43 +0100
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-18 13:15 +0000
                Re: Zip list Robert Heller <heller@deepsoft.com> - 2023-02-18 14:46 +0000
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-18 17:39 +0100
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-19 11:10 +0000
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-19 12:42 +0100
                Re: Zip list "25B.E866" <25B.E866@noaaba.net> - 2023-02-22 00:58 -0500
                Re: Zip list "Carlos E. R." <robin_listas@es.invalid> - 2023-02-22 18:54 +0100
                Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-22 17:00 -0500
                Re: Zip list not@telling.you.invalid (Computer Nerd Kev) - 2023-02-23 09:23 +1000
                Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-22 19:41 -0500
                Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-22 19:43 -0500
                Re: Zip list "25B.E866" <25B.E866@noaaba.net> - 2023-02-23 01:08 -0500
                Re: Zip list "Andrei Z." <no-email@invalid.invalid> - 2023-02-23 13:32 +0300
                Re: Zip list "25B.E866" <25B.E866@noaaba.net> - 2023-02-23 11:23 -0500
                Re: Zip list "Andrei Z." <no-email@invalid.invalid> - 2023-02-23 20:29 +0300
                Re: Zip list "25B.E866" <25B.E866@noaaba.net> - 2023-02-23 21:22 -0500
                Re: Zip list Computer Nerd Kev <not@telling.you.invalid> - 2023-02-24 13:18 +1000
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 00:13 -0500
                Re: Zip list Computer Nerd Kev <not@telling.you.invalid> - 2023-02-26 12:01 +1000
                Re: Zip list "Andrei Z." <no-email@invalid.invalid> - 2023-02-24 07:58 +0300
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 00:15 -0500
                Re: Zip list "Andrei Z." <no-email@invalid.invalid> - 2023-02-25 09:34 +0300
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 02:33 -0500
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-25 10:19 +0000
                Re: Zip list Eric Pozharski <whynot@pozharski.name> - 2023-02-25 13:43 +0000
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-25 12:04 +0100
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-25 10:00 +0000
                Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-18 16:18 -0500
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-19 11:13 +0000
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-19 12:48 +0100
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 00:51 -0500
                Re: Zip list Rich <rich@example.invalid> - 2023-02-25 06:15 +0000
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 02:30 -0500
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-25 10:17 +0000
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 23:08 -0500
                Re: Zip list Robert Riches <spamtrap42@jacob21819.net> - 2023-02-26 03:46 +0000
                Re: Zip list The Natural Philosopher <tnp@invalid.invalid> - 2023-02-25 10:09 +0000
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-26 00:12 -0500
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-25 12:10 +0100
                Re: Zip list "25A.I866" <25A.I866@noacba.net> - 2023-02-25 23:41 -0500
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-26 20:22 +0100
                Re: Zip list "28A.I873" <28A.I873@noabzba.net> - 2023-02-26 23:56 -0500
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-02-27 19:26 +0100
                Re: Zip list "28A.I873" <28A.I873@noabzba.net> - 2023-02-27 22:20 -0500
                Re: Zip list Rich <rich@example.invalid> - 2023-02-28 15:21 +0000
                Re: Zip list "Carlos E.R." <robin_listas@es.invalid> - 2023-03-01 23:23 +0100
                Re: Zip list "28A.I873" <28A.I873@noabzba.net> - 2023-03-02 00:02 -0500
              Re: Zip list Andreas Kohlbach <ank@spamfence.net> - 2023-02-18 16:17 -0500
            Re: Zip list Eric Pozharski <whynot@pozharski.name> - 2023-02-18 14:55 +0000

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