fizzbuzz, bash, 86 characters (cheat)

#!/bin/bash
# 86 characters, minimal spaces.
for i in {1..100};do printf "\n$i\r";(($i%3))||printf Fizz;(($i%5))||printf Buzz;done

# loop over the numbers
for i in {1..100};
do
    printf "\n$i\r"; #newline, number, cariage return (back to beginning of line)
    # if devisible by 3, print fizz, this will overwrite the number since we're back at the start of the line.
    # if devisible by 3 (($i%3)) returns 0, which is false, so we use the "or" operator, not "and"
    # use printf here since we don't want a newline and 'echo -n' is longer then printf
    (($i%3))||printf Fizz;
    # same for 5
    (($i%5))||printf Buzz;
done