Show the current password of wifi ssid connected | under Ubuntu / Debian based system

myWifiPassword.sh

#!/bin/sh

myWifiPassword() {
	SSID=`iwgetid -r`
	FILE=/etc/NetworkManager/system-connections/$SSID

	if [ ! -f "$FILE" ];
	then
		FILE="/etc/NetworkManager/system-connections/Auto $SSID"
	fi

	sudo cat "$FILE" | sed -rn '/psk=([0-9A-Za-z]+)/p' | awk '{print substr($1,5)}'
}