file5

#!/bin/bash

# WiFi Setup for Ubuntu 18.04


function deleteWiFi() {
        echo "Deleting Connection $1..."
        sudo nmcli con delete "$1"
}

function connectWiFi() {
        echo "Connecting..."
        sudo timeout 5 nmcli con up "$1"
        nmcli con
        if (nmcli con | grep "$SSID" > /dev/null); then
                echo -e "\033[1m\033[5m\033[32m\033[40mSUCCESS\033[0m"
        else
                echo -e "\033[1m\033[5m\033[31mFailed\033[0m: Not connected to requested WiFi!"
        fi
}

SSID=$(dialog --clear --inputbox "Please enter SSID: " 7 10 2>&1 >/dev/tty)

if nmcli con show id "$SSID" &>/dev/null; then
        ACTION=$(dialog --menu "Connection named like SSID already exists." 10 34 2 Con "Connect to it" Del "Delete old connection" 2>&1 >/dev/tty)
        if [ "$ACTION" = "Con" ]; then
                connectWiFi "$SSID"
                exit 0
        elif [ "$ACTION" = "Del" ]; then
                deleteWiFi "$SSID"
        else
                exit 1
        fi
fi

dialog --clear --yesno "Has password?" 5 17 2>&1 >10 2>&1 >/dev/tty
HAS_PW=$?
if [ $HAS_PW ]; then
        PASSWORD=$(dialog --clear --passwordbox "Password:" 7 10 2>&1 >/dev/tty)
fi
TEAM_ID=$(dialog --clear --inputbox "Team ID: " 7 10 2>&1 >/dev/tty)
# BOT_ID=$(dialog --clear --inputbox "Bot ID: " 7 10 2>&1 >/dev/tty)
IP_LAST_OCTET=$(dialog --clear --inputbox "Last IP octet: " 7 10 2>&1 >/dev/tty)
MY_IP="192.168.${TEAM_ID}.${IP_LAST_OCTET}"
GATEWAY="192.168.1.1"
SUBNET="16"
IFACE="wlp1s0"

echo "Disconnecting WiFi..."
sudo nmcli dev disconnect "$IFACE"
echo "Initializing connection..."
sudo timeout 1 nmcli dev wifi connect "$SSID" password "$PASSWORD" name "$SSID"
echo "Changing to static IP config..."
sudo sed -i "/\[ipv4\]/,+2s/method=auto/method=manual\naddress1=${MY_IP}\/${SUBNET},${GATEWAY}/" "/etc/NetworkManager/system-connections/$SSID"
echo "Disconnecting WiFi..."
sudo nmcli dev disconnect "$IFACE"
connectWiFi "$SSID"