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I use Linux, and I want unpack a file that is daily released by an external entity in an self-extractable zip format for windows. If I would do this only once, that would be ok for me to find a Windows machine and run it there. However, this file is released daily, and I am in the process of automating the download.

Is there a way to unpack this file on linux?

If of any help, this is the header of the EXE file when run:

PKSFX(R)  Version 2.50  FAST!  Self Extract Utility for Windows 95/NT 4-15-1998
Copyright 1989-1998 PKWARE Inc.  All Rights Reserved. Shareware Version
PKZIP Reg. U.S. Pat. and Tm. Off.
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1 Answer 1

up vote 0 down vote accepted

Just found a way while tinkering with Linux Zip.

Give the self extractable file is a.exe:

  1. run zip -J a.exe to discard the preambles(stuff related to the executable itself, not the data).
  2. unzip normaly to a new file, with gunzip -d <a.exe >unpackedFile
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I think it should be possible to do it in one go with "unzip". –  pjc50 Nov 7 '12 at 14:16
    
Aye. Under windows you just rename the executable to .zip and use winrar/winzip/$whatever_prog to extract it. Assuming your unzip binary is compatible you could just 'unzip' the file under Linux and ignore the extenstion. –  Hennes Nov 7 '12 at 17:26

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