#!/bin/bash
# Simple Program to Help Take Timelapse Photos

num_one=0
num_two=0

echo -n "How often would you like a photo to be taken (in seconds): "
read num_one
echo -n "How long would you like the time lapse to run (in minutes): "
read num_two

often=$((num_one * 1000))
duration=$((num_two * 1000 * 60))

echo "$often"
echo "$duration"

echo -e "\n$(((num_two * 60) / num_one)) pictures will be taken\n\n"

echo -e "Starting now..."

raspistill -o img%04d.jpg -tl $often -t $duration





pi@PIcam ~ $ ./timelapse
How often would you like a photo to be taken (in seconds): 2
How long would you like the time lapse to run (in minutes): 0.5
./timelapse: line 13: 0.5: syntax error: invalid arithmetic operator (error token is ".5")
2000

./timelapse: line 18: 0.5: syntax error: invalid arithmetic operator (error token is ".5")
Starting now...