I am a new user of Linux OS's and I am trying Ubuntu 12.10 right in this days. The overall impression is quite positive, but there are some features that make it still complicated for use from most would-be users and in certain specific situations.
So, today I had to compress a couple of important .jpeg images into .zip files, to send them through Thunderbird to a Windows-using bureau (at least as I guess), and the outcome of the compression (simple way: right click-> compress-> .zip and same folder without password) were files of the very same size! :-(
I tried removing the .jpeg extension, I tried with formats other than .zip (although not sure they would be successfully opened from the recipient), I downloaded the "7zip" utility, I spent a while over all of this trying random things...not a different outcome than same-size files.
So, should I not be willing to use the command lines,
how can I quickly compress these files or folders into .zip (not interested in other extensions at the moment) in case the simple procedure above does not work?
Sorry that you may find it a banal question, but I think these are the little hassles that prevent Unix-like OS's from becoming really widespread. Thank you for your help!