I wanted to take a folder full of PDF files and create a number of separate zip files, after following the advice on this question everything worked *almost*perfectly. Here's what happened: When I issued this command in Terminal: zip -s 5m -r ~/Desktop/invoices ~/Desktop/Invoices/ Everything worked really well, in that I got 11 ZIP files of approximately 5 MB each; placed in the folder specified. However, the files they outputted were named as follows: invoices.z01 invoices.z02 invoices.z03 invoices.z04 invoices.z05 invoices.z06 invoices.z07 invoices.z08 invoices.z09 invoices.z10 invoices.zip So as you can see only invoices.zip has been named correctly. I could go through and rename them one by one, but seriously, if we start doing that then what in the name of Evolution are computers for?! Now, I am also aware that I'm relatively new to the Terminal; so I could be making a very silly mistake somewhere. If that's the case, please be patient :-) Any help would be greatly appreciated. One last note: I'm quadriplegic so I would like to avoid GUI applications as much as possible, I use voice recognition software you see this working in the Terminal is much much easier.