I have some various mods and such that require something to be placed in the bin folder of Minecraft... but on Linux Ubuntu there is no bin folder. What should I do?
If you are uncertain about the basics of modding, I highly recommend 'Magic launcher'.
This applet allows players to mod without fiddling around with META-inf and bin folder/directories and the mods can be turned on and off with the click of a check button.
Inexperienced modders can break thier MC by adding or removing classes without knowing whats going on. Good luck :)