Cambia la IP a una dir IP fija estática Lliurex - change ip to a certain fix static IP linux lliurex

#!/bin/bash

# Function to configure the network interface with the static IP
configure_ip() {
    local aula=$1
    local third_octet=$2
    local fourth_octet=$3
    local ip="10.2.${third_octet}.${fourth_octet}"
    local netmask="255.255.255.0"
    local gateway="10.2.${third_octet}.1"

    echo "Setting up static IP for aula ${aula}..."
    echo "IP Address: ${ip}"
    echo "Netmask: ${netmask}"
    echo "Gateway: ${gateway}"

    # Replace "eth0" with your network interface name
    interface="eth0"

    sudo ip addr flush dev ${interface}
    sudo ip addr add ${ip}/24 dev ${interface}
    sudo ip route add default via ${gateway} dev ${interface}

    echo "Static IP configuration completed for ${interface}"
}

# Get user input
read -p "Enter the aula: " aula
read -p "Enter the third octet (decimal number): " third_octet
read -p "Enter the PC number (last octet): " fourth_octet

# Validate the input
if ! [[ ${third_octet} =~ ^[0-9]+$ ]] || ! [[ ${fourth_octet} =~ ^[0-9]+$ ]]; then
    echo "Error: Both the third octet and the PC number must be decimal numbers."
    exit 1
fi

# Ensure the octets are within valid range
if [ ${third_octet} -lt 0 ] || [ ${third_octet} -gt 255 ] || [ ${fourth_octet} -lt 1 ] || [ ${fourth_octet} -gt 254 ]; then
    echo "Error: The third octet must be between 0 and 255, and the PC number must be between 1 and 254."
    exit 1
fi

# Configure the IP address
configure_ip ${aula} ${third_octet} ${fourth_octet}