From 601575e1c0775345fd1e2e5cc5a2a06b0b644a7d Mon Sep 17 00:00:00 2001
From: Paul M <paul@penguinpost.net>
Date: Mon, 3 May 2021 22:32:57 -0500
Subject: [PATCH] Bash code comment clarification

---
 Bash/OpenWrt/band.bash        | 13 ++++++++-----
 Bash/Raspberry Pi/bndweb.bash |  5 ++---
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/Bash/OpenWrt/band.bash b/Bash/OpenWrt/band.bash
index 7da09c4..6e3e11b 100644
--- a/Bash/OpenWrt/band.bash
+++ b/Bash/OpenWrt/band.bash
@@ -3,11 +3,13 @@
 # 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
+
+# Note comcast caps at 1.2 TB 
+mtotal=1000 # Monthly warning threshold
+dmax=40 # daily max usage value, trouble might arise if I go past 40 GB a day
 md=`date +%d` # day of the month numerically
-cmd=$(($dmax * $md)) # computed max daily
-wif="eth1.2"
+cmd=$(($dmax * $md)) # computed max daily, not hard value but can indicate a problem
+wif="eth1.2" # interface to ask vnstat for, in my case the default wan vlan in Openwrt
 
 # now vnstat stuff, some of this is specific to openwrt
 
@@ -15,4 +17,5 @@ vnhourly=`vnstat -i $wif -d -s --oneline | awk -F\; '{print $6}'` # total daily
 vnmonthly=`vnstat -i $wif -d -s --oneline | awk -F\; '{print $11}'` # monthly total usage
 
 
-logger "dom $md cm $cmd vnhourly $vnhourly vnmonthly $vnmonthly";
+logger "dom $md cm $cmd vnhourly $vnhourly vnmonthly $vnmonthly"; # Remeber the local syslog on OpenWrt is setup to log to a remote system
+# therefore this is a lazy way to send the data out
diff --git a/Bash/Raspberry Pi/bndweb.bash b/Bash/Raspberry Pi/bndweb.bash
index d3709fa..59baf86 100644
--- a/Bash/Raspberry Pi/bndweb.bash	
+++ b/Bash/Raspberry Pi/bndweb.bash	
@@ -8,7 +8,6 @@
 # note log contains a weeks worth of hourly bandwidth logs and we need the most recent
 # only
 
-vndat=`cat /var/log/openwrt.log | grep "root: dom" | tail -n 1`;
+vndat=`cat /var/log/openwrt.log | grep "root: dom" | tail -n 1`; # Depending on your setup your log file name might be different
 
-echo  "$vndat" > /var/www/html/bnd.dat;
-# echo "$vndat";
+echo  "$vndat" > /var/www/html/bnd.dat; # your web root may differ
\ No newline at end of file