Script execution limiter

limiter.sh

#! /usr/bin/env bash

name=$1
interval=$(echo "$2" | bc)
file=~/.limiter/"$name"

now=$(date +"%s")
if [ ! -f "$file" ] || (( $(echo $now - $(cat "$file") | bc) >= $interval )); then
	mkdir -p ~/.limiter
	echo $now > "$file"
	${@:3}
else
	remainingTime=$(echo $interval - \($now - $(cat $file)\) | bc)
	echo Remaining time before allowing to start: $remainingTime
fi