#!/bin/bash
#
# Generates random number in a specified range. Example:
# random number 1-10

if [[ -z "$@" ]]; then
	echo "^random number [0-9]+-[0-9]+$"
elif [[ "$1" == "--dry-run" ]]; then
	shift
	echo "$@"
else
	BOUNDS="$(echo "$@" | sed -E 's/^random number ([0-9]+)-([0-9]+)$/\1 \2/g')"

	MIN="$(echo $BOUNDS | cut -d' ' -f1)"
	MAX="$(echo $BOUNDS | cut -d' ' -f2)"

	awk -v min=5 -v max=10 "BEGIN{srand(); print int($MIN+rand()*($MAX-$MIN+1))}"
fi