Unzip a multi-file zip archive in freebsd

Question

I created a multi-file zip archive of some files using 7zip on Windows to allow more easy uploading to my server. I now want to unzip this archive on the server, but I get this error:

[user@host ~/uploads/Android_SS_VM]$ unzip Android_SS.zip.001
Archive:  Android_SS.zip.001
  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 Android_SS.zip.001 or
		Android_SS.zip.001.zip, and cannot find Android_SS.zip.001.ZIP, period.

How can I extract this archive in FreeBSD?

Answer 1

I think the error message is telling you that unzip needs the last part as the argument (not the first):

# replace .999 with the last number of your multi-part
$ unzip Android_SS.zip.999

You can also get a commandline version of 7-zip for FreeBSD. p7zip is in the Ports archive, and the official 7-zip provides a sourcecode tarball for download.

Edit: Several posts in various linux forums indicate that using unzip on a multipart archive actually needs some other steps:

# combine all multiparts
$ cat Android_SS.zip.* > Android_SS.zip

# fix the zip
$ zip -F Android_SS.zip

# unzip
$ unzip Android_SS.zip