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Delete Invisible File Created by Compression Software

linzan asked
Medium Priority
Last Modified: 2010-04-25
I am working on a Mac and need to compress files to upload to a data base. Compression software for Macs creates an invisible file, so I am told, that I need to delete, as it is creating an error when I upload to this database that is only PC friendly. You can only upload one file at a time and it is seeing the invisible file. How do I compress without creating this invisible file?
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Can you provide a little more info on the "software" you are using to compress and how you are compressing it? There are built-in programs on the Mac (assuming you have OS X and not OS 9) that will compress the files and not leave a so-called "invisible" file. A little more information about how you are doing this will help in determining a solution that works. Can you answer these questions:

1) What type of file extension does the database want to see (.zip, .gz, other?)
2) What type of database is expecting the file (oracle, sybase, microsoft, mysql, proprietary, other?)
3) How do you upload (web page, ftp, some other command?)



2) We are uploading to GeoTracker. I believe this is proprietary.
3) We are uploading via the GeoTracker web site.

We are using OS X.


Comment to strung:
Thanks for the list of cross-platform compression software, but this is not really solving my problem. I get the impression that there must be a setting that we should use when compressing that will eliminate the "invisible file".

I failed to ask the obvious question, "Which program are you using to create the zip file that is creating the invisible file?" Sorry about that.

The built-in zip command can be used to compress a file. In a terminal window, just type zip and then the name of the file you are compressing. It shouldn't leave any invisible file behind.


We used the built-in zip command. It is not that there is an invisible file left behind, it is that the zipped file contains an invisible file with the source or the resource of the file. I am obviously not an expert here, so my terminology may be incorrect. The invisible file has information so that you can return to the source of the zipped file.

Thanks for continuing to try.

Ok, I understand what is happening now. Let me check a few things and I'll post again soon.

Can you tell me what version of OS X you are running and also what version of zip? you can find the zip version by typing zip -v. Just cut and paste the whole mess it gives you into the reply if you don't mind.



OS 10.4.5
Where should I type zip -v?
in a terminal window

open Terminal from the Applications > Utilities folder. The same place you are running the zip program, right? Are you running it from a graphical interface or from the command line?

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