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bug#32824: additional info

From: Coleman, Patrick EX1
Subject: bug#32824: additional info
Date: Mon, 24 Sep 2018 20:17:03 +0000

You rock Assaf!  Thank you very much, very helpful!

Patrick Coleman (AOI)
400 Campus Drive
Collegeville, Pa. 19426

O: +01 1.610.244.2283


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-----Original Message-----
From: Assaf Gordon <address@hidden>
Sent: Monday, September 24, 2018 4:15 PM
To: Coleman, Patrick EX1 <address@hidden>; address@hidden
Subject: Re: bug#32824: additional info


On 24/09/18 01:18 PM, Coleman, Patrick EX1 wrote:
> I'm beginning to suspect the supplier that is sending in the zipped
> files is unaware what compression utility they're using and/or
> version... the only 3.0 compression utility I'm finding is WinZip.

More likely (if they are on AIX) that they are using info-zip
 which is at version 3.0.

On most gnu/linux system, you should have the "file" utility installed, which 
can be used to detect the file type.

$ file unknown1.bin
unknown1.bin: Zip archive data, at least v2.0 to extract

$ file unknown2.bin
unknown2.bin: gzip compressed data, last modified: Mon Sep 24 13:26:32 2018, 
from Unix =====

> I think the file is failing to unzip due to the file not being
> completely downloaded.  Appears truncated.  Any thoughts you can
> provide though on Gzip 3.0 would be helpful, thanks.
A good way is to ask the sender to calculate the checksum of their file before 
uploading it.
Then you can calculate the checksum of the downloaded file.
If they are not exactly the same - you have some corruption.

On AIX, they should run:

   $ shasum archive.bin
   f572d396fae9206628714fb2ce00f72e94f2258f  archive.bin

After you download the file, check again:

   $ sha1sum archive.bin
   f572d396fae9206628714fb2ce00f72e94f2258f  archive.bin

(Note the program name is "shasum" on AIX and "sha1sum" on gnu/linux).

hope this helps,
  - assaf

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