[Some](https://www.redpill-linpro.com/sysadvent/2016/12/13/bash_random_numbers.html) Bash documentation [sucks](https://linux.die.net/man/1/bash#Random).

random.sh

echo -e '"$RANDOM returns a pseudorandom integer between 0 and 32767" - False.'
(( r = 1 ))
until ((r <= 0 || r >= 32767))
do
        (( r = $RANDOM ))
done
echo -e "$r.\nSemicolons replace newlines:"
(( r = 5)); while ((r < 10)); do echo $r; (( r ++ )); done

echo "Ranges include end:"
for value in {1..5}
do
        echo $value
done