Knock, knock, Neo.

#!/bin/bash

function slowecho {
    text="$1"
    if [ -z "$2" ]; then max_sleep=0; else max_sleep="$2"; fi
    if [ -z "$3" ]; then min_sleep=0; else min_sleep="$3"; fi

    text_length=${#text}
    speeds_count="$[max_sleep-min_sleep]"

    for ((char_num=0;char_num<"$text_length";char_num++)); do
        echo -en "${text:$char_num:1}"

        sleep_pause="0.$max_sleep"
        if [ "$speeds_count" -ne 0 ]; then
            sleep_pause="0.$[RANDOM % speeds_count + min_sleep]"
        fi
        sleep "$sleep_pause"
    done
}

resetstate="\ec"
hidecursor="\e[?25l"
clearline="\e[1K"
leftangle="\e[0;0H"
green="\e[32m"

echo -en "$resetstate$hidecursor$green"
sleep 2

slowecho "Wake up, Neo..." 2 1
sleep 2
echo -en "$clearline$leftangle"

slowecho "The Matrix has you..." 5 2
sleep 2
echo -en "$clearline$leftangle"

slowecho "Follow the white rabbit." 2 1
sleep 2
echo -en "$clearline$leftangle"

echo -n "Knock, knock, Neo."
sleep 2
echo -en "$resetstate"