Hashcat-gui does nothing

[slyths]

When you write these commands in a shell prompt, what do you have ?
Errors can be:
- something like "hashcat command not found" : means that you are not in the good directory,
- an error with hashcat : paste it here.

If you launch your commands from hashcat-gui, be aware that the executables shall be in the directories, you should extract *all* files.

sincerely nothing happens, anyway i've installed backtrack on my hard drive, 'cause when i tried to use it on the backtrack on virtualbox it somehow worked, so now i'll try it on this new installation of backtrack.

Yes, you are missing a mask. Read here: https://hashcat.net/wiki/mask_attack

So i basically need to know the password length and each character int... that's quite hard, is there anyway to know how long the password is, by having the salt?