typing.sh

#!/usr/bin/bash
filename="$1"

wait="🕜"

# test 🕜🕜🕜🕜pausing 

function keystroke-delay {
    delay=`bc <<END
    scale=2
    0.02 + (0.1 * ($RANDOM / 32767))
END`
    sleep $delay
}

while IFS='' read -r line
do
    for i in $(seq 1 ${#line})
    do
        char="${line:i-1:1}"
        if [ "$char" = $wait ]; then
            sleep 1
        else
            echo -n "$char"
            if [ "$char" != " " ]; then
               keystroke-delay
            fi
        fi
    done
    echo
done < "$filename"