Cursor navigation in Terminal
Solution 1:
^ + A for the beginning of the line
^ + E for the end of the line.
Works with Cocoa control too.
^ = Ctrl
Solution 2:
You can also hold down the alt key and click with your mouse wherever you want the cursor to jump to.
Note however, that this only works on the same line the cursor currently is on, so if you have a long command wrapping around two lines, you will have to jump to the beginning of the second line, jump one character back (so you´re on the end of the first line now) and then can use the alt+mouse to navigate again.