band.bash added

Bandwidth usage reporting tool.

band.bash

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# Requires vnstat to be running on target system
+
+# initial values
+mtotal=1000 # monthly total in GB for high end cut off
+dmax=40 # daily max usage value
+md=`date +%d` # day of the month numerically
+cmd=$(($dmax * $md)) # computed max daily
+wif="eth1.2"
+
+# now vnstat stuff, some of this is specific to openwrt
+
+vnhourly=`vnstat -i $wif -d -s --oneline | awk -F\; '{print $6}'` # total monthly usage
+vnmonthly=`vnstat -i $wif -d -s --oneline | awk -F\; '{print $11}'` # daily total usage
+
+
+logger "dom $md cm $cmd vnhourly $vnhourly vnmonthly $vnmonthly";