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Full Discussion: Issue with zip
Operating Systems Solaris Issue with zip Post 302580096 by turk451 on Wednesday 7th of December 2011 01:33:09 PM
Old 12-07-2011
zaxxon's advice is correct if for some reason it is a file compressed using gzip, but it was named with a ".zip" extension. However, it is worth mentioning that the error you encountered may also be because the file was corrupted in some way. ZIP and GZIP are binary formats, so if that file was transferred at some point using a non-binary protocol, it may have corrupted the data. Also, to determine if it is ZIP or GZIP, you can look at the first few bytes of the file.

Zip file header:

Code:
od -h file.gz |head
0000000 8b1f ...



Gzip file header:

Code:
od -h file.zip|head
0000000 4b50 0403 ...

Last edited by turk451; 12-07-2011 at 02:38 PM..
 

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LEARN ABOUT DEBIAN

p7zip

p7zip(1)						      General Commands Manual							  p7zip(1)

NAME

       p7zip - Wrapper on 7zr, a 7-zip file archiver with high compression ratio

SYNOPSIS

       p7zip [-d] [-h|--help] [file]
	   -h print this help
	   -d decompress file

DESCRIPTION

       7-Zip  is  a file archiver with the highest compression ratio. The program supports 7z (that implements LZMA compression algorithm), LZMA2,
       XZ, ZIP, Zip64, CAB, RAR (if the non-free p7zip-rar package is installed), ARJ, GZIP, BZIP2, TAR, CPIO, RPM, ISO,  most	filesystem  images
       and DEB formats. Compression ratio in the new 7z format is 30-50% better than ratio in ZIP format.

       p7zip is a gzip-like CLI wrapper script for 7zip

FUNCTION LETTERS

       -d     Decompress file

       -h, --help
	      Print usage

SEE ALSO

       7z(1), 7za(1), 7zr(1), bzip2(1), gzip(1), zip(1)

AUTHOR

       Written for Debian by Mohammed Adnene Trojette.

Mohammed Adnene Trojette					  October 31 2004							  p7zip(1)
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