satsback-draw.sh

#!/bin/bash

getArray() {
    array=()
    while IFS= read -r line
    do
        array+=("$line")
    done < "$1"

}

# Read "tickets.txt" into a variable called $array
# Grab length of array and then grab a random number

getArray "tickets.txt"
i=0
for e in "${array[@]}"
do
    i=$(echo "$i + 1" | bc)
done
RAND=$((1 + $RANDOM % $i))
SELECTION=$(echo "$RAND - 1" | bc)
echo "The winner is: ${array[$SELECTION]}"