A harmless prank

oogabooga.sh

#!/bin/bash

white="\033[0;37m"
red="\033[0;31m"
yellow="\033[0;33m"
green="\033[0;32m"
blue="\033[0;34m"

newTermOpened=0

colors=( $white $red $yellow $green $blue )
numMsg=10

sleepNum=0.04

while [ true ]
do

    msgNum=$((RANDOM % 10))

    i=$((RANDOM % ${#colors[@]}))
    msg=$(cat peter/$((RANDOM % $numMsg)))
    echo -e "${colors[$i]}$msg"


    if [ $newTermOpened == 0 ]; then
        newTermNum=$((RANDOM % 50))
        if [ $newTermNum == 0 ]; then
            tput sgr0
            osascript -e 'tell application "Terminal" to do script "./peter/test.sh"'
            osascript -e 'tell application "Terminal" to do script "./peter/test.sh"'
            newTermOpened=1
        fi
    fi

    if [ $newTermOpened == 1 ]; then
        echo -n -e "\033]0;My Window Name\007"
        osascript -e 'tell application "Terminal" to close (every window whose name contains "My Window Name")' &
    fi

    sleep $sleepNum
done