i'm new in ubuntu and i'm having some trouble. 1) I downloaded Eclipse installer from official page but I don't know how to install it without the software center or downloading it again. 2) I also downloaded apt Wally (to change wallpaper periodly), but now it doesn't appear in searches, only when I use the console. How i make it appear again on the side launcher?? Also, is there a basic like tutorial for ubuntu?? Or should i learn as i need it?? Thanks for the help ^^