Configure RPi (Setup)

config-rpi.sh

#!/bin/bash
# @author   Mansour Yaacoubi
# @filename config-rpi.sh

################# CHECK WHETHER SCRIPT IS RUNNING AS ROOT #################
# Run script as root (higher privileges)
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

DEFAULT_USER='pi'
dlfilename='dl-tools.sh'
NEW_USER=''
WIFI_NAME=''
WIFI_KEY=''

if [ "$SUDO_USER" == "$DEFAULT_USER" ];then
  if [ ! -z $1 ];then
    NEW_USER="$1"
  else
    echo "Enter new username: "
    read NEW_USER
  fi
  echo "add new user $NEW_USER"
  adduser $NEW_USER
  adduser $NEW_USER sudo
  reboot
else
  echo "Enter WIFI SSID: "
  read WIFI_NAME
  echo "Enter WIFI Key: "
  read WIFI_KEY
  echo ""
  echo "1) delete old user $DEFAULT_USER"
  deluser $DEFAULT_USER
  rm -r /home/$DEFAULT_USER
  echo "2) configure raspi"
  raspi-config
  echo "3) add WIFI $WIFI_NAME"
  wpa_passphrase "$WIFI_NAME" "$WIFI_KEY" >> /etc/wpa_supplicant/wpa_supplicant.conf
  sleep 3
  wpa_cli reconfigure
  wget -q --tries=10 --timeout=20 --spider http://google.com
  if [[ $? -eq 0 ]]; then
    echo "Raspi Online"
    echo "4) download tools"
    bash <(curl -s https://gist.githubusercontent.com/mansouryaacoubi/0582fe108f699956c677b95e24c71e9a/raw/73c7ce97257eb76a4d2c3a1b4c7243f8efdf0355/dl-tools.sh)
  else
    echo "Raspi is offline. Tools can be downloaded after reboot".
    echo "#!/bin/bash" > $dlfilename
    echo "" >> $dlfilename
    echo "cd ~" >> $dlfilename
    echo "rm -f "$0 >> $dlfilename
    echo "bash <(curl -s https://gist.githubusercontent.com/mansouryaacoubi/0582fe108f699956c677b95e24c71e9a/raw/73c7ce97257eb76a4d2c3a1b4c7243f8efdf0355/dl-tools.sh)" >> $dlfilename
    chmod +x $dlfilename
  fi
  rm -f /boot/$(basename $0)
  reboot
fi
exit