Adds wifi to the wpa_supplicant file and reconfigures wpa_cli (Raspberry Pi Wifi)

addwifi.sh

#!/bin/bash
# @author   Mansour Yaacoubi
# @filename addwifi.sh
# @usage    sudo ./addwifi.sh "SSID" "WPA-Key"
# @task     adds wifi to the wpa_supplicant file and reconfigures wpa_cli

if [ "$EUID" -ne 0 ]
then echo "Please run as root"
  exit 1
else
  clear
  echo
  echo "Script is running with higher privileges as: $SUDO_USER -> $(whoami)"
  echo
fi

if [ -z "$1" ] || [ -z "$2" ]; then
  echo "Missing operands"
  echo "First arg: SSID; Second arg: Password"
  exit
fi

wpa_passphrase "$1" "$2" >> /etc/wpa_supplicant/wpa_supplicant.conf
wpa_cli reconfigure