[TriLUG] Strangeness in the Zip-world

[William Sutton via TriLUG]

+1 for wondering what happens if you try to unzip it with 7zip.

William Sutton

On Wed, 3 Jul 2019, shay walters via TriLUG wrote:

> Aside from Mac or Win, you could try gunzip or p7zip under linux.  Since
> you had some earlier files that would unzip OK, maybe a system update had
> updated the zip software and broken it at some recent point.  Or perhaps
> the unzip package was what got broken.  That's why I suggested trying
> something else to determine if the zip fie is bad (indicating the zip
> package is broken) or whether the unzip package is broken.
>
> Anyway, hope that helps.
>
> On Wed, Jul 3, 2019 at 5:53 PM William Sutton <william at trilug.org> wrote:
>
>> Also curious what `file` says it is compared with a file created on the
>> system you're trying to unzip on.
>>
>> William Sutton
>>
>> On Wed, 3 Jul 2019, shay walters via TriLUG wrote:
>>
>> > Could it be that the program creating the zip file has an issue?  Have
>> you
>> > tried to unzip the file on a different platform to determine if the zip
>> > file is corrupt?
>> >
>> > -Shay
>> >
>> >
>> >
>> > On Wed, Jul 3, 2019 at 2:50 PM Brian McCullough via TriLUG <
>> > trilug at trilug.org> wrote:
>> >
>> >>
>> >> Folks,
>> >>
>> >> I have just started running into an issue where my old, tried and true,
>> >> unzip in Debian 9 will not unzip ( new ) zip files that I am finding.
>> >>
>> >> I don't think that they are Windows zip files, since they are hosted on,
>> >> and generated by, a Linux ( Debian ) machine with PHP 7.2.
>> >>
>> >> When I try to use unzip on these files, I get:
>> >>
>> >> Archive:  t1.zip
>> >>   End-of-central-directory signature not found.  Either this file is not
>> >>   a zipfile, or it constitutes one disk of a multi-part archive.  In the
>> >>   latter case the central directory and zipfile comment will be found on
>> >>   the last disk(s) of this archive.
>> >> unzip:  cannot find zipfile directory in one of t1.zip or
>> >>         t1.zip.zip, and cannot find t1.zip.ZIP, period.
>> >>
>> >>
>> >>
>> >> This is a stand-alone file, definitely not part of a multi-part archive,
>> >> with unzip running on a Debian 9 system.  I have had the same experience
>> >> with all files that I try.  I can successfully unzip other files that
>> >> were on my system already.
>> >>
>> >>
>> >> Any suggestions?
>> >>
>> >>
>> >> Thanks,
>> >> Brian
>> >>
>> >> --
>> >> This message was sent to: Shay Walters <shaywalters at gmail.com>
>> >> To unsubscribe, send a blank message to trilug-leave at trilug.org from
>> that
>> >> address.
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>> > --
>> > This message was sent to: William <william at trilug.org>
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>>
> -- 
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