I am creating a PHP service where a user can download external ZIP files from another server to the server with the PHP. After download I keep getting this ZIP error stating that the file was corrupt / multi-part. That's not the case. I can't extract it on the linux server but when I copy it over to my OSX machine it extracts flawlessly when I double click on the archive but the terminal unzip command gives the same error. I'm confused:
Archive: pdbeUpload.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.
Here's the link to the file (140MB):
ftp://ftp.ebi.ac.uk/pub/databases/emdb/structures/EMD-2754/map/emd_2754.map.gz
Remember, my aim is to automate the download process, so I need to get to understand why this fails.
Here's what I'm getting with gunzip:
gunzip pdbeUpload.zip
gzip: pdbeUpload.zip: unknown suffix -- ignored
And for bunzip2, to be complete:
bunzip2: pdbeUpload.zip is not a bzip2 file.
That's a gzip archive, not zip. Use gunzip.