Originally posted by: gshekar

Hi,

I am not able to extract a .zip file using unzip program in AIX.
Is it because my filesize is more than 2G in size? Please suggest.
I am not facing issues with zip files less than 2G.

$ oslevel -s
5300-04-02

$ rpm -qa | grep -i unzip
unzip-5.51-1

dart:p3elm -> $ du -sg mydata.zip
2.50 mydata.zip

$ unzip -l mydata.zip
Archive: mydata.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 mydata.zip or
mydata.zip.zip, and cannot find mydata.zip.ZIP, period.

Thanks.

Originally posted by: hdkutz

Hello,
use
gunzip
instead. It's in the package
gzip-1.2.4a-7

Look also, for your ulimit settings in
/etc/security/limits
or
smitty chuser

Cheers,
ku

Originally posted by: gshekar

Hi,

$ ulimit -a
time(seconds) unlimited
file(blocks) unlimited
data(kbytes) 262144
stack(kbytes) 32768
memory(kbytes) 32768
coredump(blocks) unlimited
nofiles(descriptors) 8192
$ gunzip mydata.zip
gunzip: mydata.zip: unknown suffix -- ignored

gunzip -S .zip mydata.zip
gunzip: mydata.zip has more than one entry -- unchanged

Originally posted by: gshekar

gunzip does not seem to be working.

Please suggest.

Originally posted by: alethad

Is the .zip file a Unix file or a windows file? The gunzip command looks for files that were compressed with gzip which have a .gz extension. Otherwise gunzip won't work. You need to verify the method that the file was compressed.

I know I've had an issue not long ago where I downloaded a zip file for AIX which turned out to be a windows file instead. And that was on an IBM Tivoli support site for AIX.

If you've got your ulimit set to -1 then that does not appear to be your problem. Go verify the zip file.

Good luck.

Originally posted by: gshekar

Hi,

The zip file was created on that AIX server itself; however the unzip program in AIX is not able to list or extract it contents.

There is no problem with the zip file. I ftped it to a Linux box and unzip on Linux is able to list or extract its contents.

From all that I have tried so far; it seems like the unzip utility on AIX is not able to handle .zip files greater than 2GB.

I even called IBM "1800 IBM Serv" and logged a ticket; they don't support and asked me to read the license agreement:

http://www-03.ibm.com/systems/p/os/aix/linux/toolbox/altlic.html

The freeware packages ("Code") provided here are made available as a convenience to IBM customers. IBM does not own the Code, and did not develop or exhaustively test the Code. IBM does not provide support for the Code. IBM has compiled the Code so that it will run with AIX 5L. These packages are available for download via http://www.ibm.com/systems/p/os/aix/linux/toolbox/download.html.

Thanks