diff --git a/Bandwidth-Monitor/README.md b/Bandwidth-Monitor/README.md
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+# Network-Usage-Tracker
+A python script to keep a track of network usage and notify you if it exceeds a specified limit
+(only support for wifi right now)
+
+### Requirements:
+
+#####**This script needs Python 3+**
+
+You may also need to install vnstat if you don't have it already installed
+```bash
+$ sudo apt-get install vnstat
+```
+
+### Usage:
+
+```bash
+$ python bandwidth_py3.py xxx MiB/GiB &
+```
+The '&' has been added to run the process in background. If you want to stop the process at any time use :
+
+```bash
+$ ps -ef
+```
+to get the list of running processes and then get the pid of the process you want to kill and do :
+
+```bash
+$ sudo kill pid
+```
diff --git a/Bandwidth-Monitor/bandwidth_py3.py b/Bandwidth-Monitor/bandwidth_py3.py
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+++ b/Bandwidth-Monitor/bandwidth_py3.py
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+#Contributed via : https://github.com/adarshkushwah/Network-Usage-Tracker
+
+import os
+import sys
+import time
+import threading
+import subprocess
+import tkinter
+import tkinter.messagebox
+
+
+def monitor(limit, unit):
+	check = "vnstat"
+	proc = subprocess.Popen(check, shell=True, stdout=subprocess.PIPE)
+	output = proc.communicate()
+	output = str(output)
+	#print output
+	l = []
+	for t in output.split():
+		try:
+			if t == "MiB" or t == "GiB":
+				l.append(t)
+			else:
+				l.append(float(t))
+		except ValueError:
+			pass
+
+	if unit == l[5] and limit < l[4]:
+		print("\nnetwork usage limit exceeded!\n")
+		top = tkinter.Tk()
+
+		def hello():
+		 tkinter.messagebox.showinfo("Warning!", "Network usage limit exceeded!!!!")
+		B1 = tkinter.Button(top, text="Warning", command=hello)
+		B1.pack()
+		top.mainloop()
+	arg = [limit, unit]
+	threading.Timer(60.0, monitor, arg).start()
+
+
+def main():
+	if len(sys.argv) > 3 or len(sys.argv) < 3:
+		print('command usage: python3 bandwidth_py3.py <data usage in MiB or GiB>')
+		print('example: python3 bandwidth_py3.py 500 MiB')
+		print('or python3 bandwidth_py3.py 2 GiB')
+		exit(1)
+	else:
+		limit = float(sys.argv[1])
+		unit = str(sys.argv[2])
+		#callMonitor(limit, unit)
+		monitor(limit, unit)
+
+
+if __name__ == "__main__":
+	main()