somebody help it involves with an aiming script i copied from a tutoria;l and was curious abt it;
for i = 0, 100, 1 do wait() end
This loop means that the code enclosed will repeat 101 times (since 0 will be counted).
That is because in this loop you have an index ('i') set to 0, which will be incremented by 1 every time the loop runs, until it reaches 100.
So it will run once with i set to 0, then again with i set to 1, then with i set to 2, and so on until it reaches 100, ultimately running 101 times.
Hope that helps. If not, here is further documentation.