WikiDevi.Wi-Cat.RU:DD-WRT/Tc23emp

Email Bandwidth Usage Daily
This script by tc23emp will email you with the previous day's and total month's bandwidth usage. Edit it with your SMTP info. http://www.dd-wrt.com/phpBB2/viewtopic.php?p=476631#476631

Runs it 12:05AM at the start of a new day

Explanation of flags

-S = smtp server address -f = from email address -u = username for the smtp account -p = password for smtp account -s = email subject -d = senders domain -F = "From" name (as opposed to address)

This script will email you with the previous day's and total month's bandwidth usage. Edit it with your sendmail SMTP info.

Original Forum Topic


 * 1) !/bin/sh

fnc_mail { subj="$1" msg="$2" if [ -z "$3" -o "$(dirname $3)" = "." ]; then logfile="/tmp/lastmail.log"; else logfile="$3"; fi  sendmail -S"smtp.comcast.net" -f"sender@comcast.net" -F"DD-WRT" -d"comcast.net" -s"$subj" -m"$msg" me@gmail.com > $logfile 2>&1 }

aff="aff" #keyword workaround yday=$(date -D %s -d $(( $(date +%s) - 86400)) +%d) ymon=$(date -D %s -d $(( $(date +%s) - 86400)) +tr$aff-%m-%Y) ydat=$(date -D %s -d $(( $(date +%s) - 86400)) +"%h %d") if [ $(date +%d) -eq 1 ]; then monmsg="Last Month"; else monmsg="Month to Date"; fi msg=$(nvram get $ymon | awk '{print $'$yday', $NF}' | sed 's/\([^:]*\):\([^ ]*\) \[\([^:]*\):\([^]]*\)]/Totals for Yesterday\nIncoming: \1 MB\nOutgoing: \2 MB\n\nTotals for '"${monmsg}"'\nIncoming: \3 MB\nOutgoing: \4 MB\n/') fnc_mail "Bandwidth Report for $ydat" "$msg" "/tmp/bwmail.log"
 * 1) Parse the previous day and monthly totals and send an email

More in-depth examples
These scripts can be added via the web interface.

Tested on DD-WRT v24-sp2 (08/12/10) std-nokaid-small (SVN revision 14929)

Administration -> Management ->

Enable Cron = true

Additional Cron Jobs: 5 0 * * * root /tmp/custom.sh bwmail
 * /5 * * * * root /tmp/custom.sh wlclient

Administration -> Commands -> Custom Script:
 * 1) !/bin/sh


 * 1) Bandwidth Usage email

fnc_mail { subj="$1" msg="$2" if [ -z "$3" -o "$(dirname $3)" = "." ]; then logfile="/tmp/lastmail.log"; else logfile="$3"; fi  sendmail -S"smtp.comcast.net" -f"sender@comcast.net" -F"DD-WRT" -d"comcast.net" -s"$subj" -m"$msg" me@gmail.com > $logfile 2>&1 }

if [ "$1" = "bwmail" ]; then #Parse the previous day and monthly totals and send an email aff="aff" #keyword workaround yday=$(date -D %s -d $(( $(date +%s) - 86400)) +%d) ymon=$(date -D %s -d $(( $(date +%s) - 86400)) +tr$aff-%m-%Y) ydat=$(date -D %s -d $(( $(date +%s) - 86400)) +"%h %d") if [ $(date +%d) -eq 1 ]; then monmsg="Last Month"; else monmsg="Month to Date"; fi  msg=$(nvram get $ymon | awk '{print $'$yday', $NF}' | sed 's/\([^:]*\):\([^ ]*\) \[\([^:]*\):\([^]]*\)]/Totals for Yesterday\nIncoming: \1 MB\nOutgoing: \2 MB\n\nTotals for '"${monmsg}"'\nIncoming: \3 MB\nOutgoing: \4 MB\n/') fnc_mail "Bandwidth Report for $ydat" "$msg" "/tmp/bwmail.log" fi


 * 1) Client notification email

if [ "$1" = "wlclient" ]; then #Send a e-mail whenever a new wireless client connects, remember them until the next router reboot #Uncomment the following line and edit the list MAC addresses you don't want to be notified about (seperated by spaces) #macignore="0A:1B:2C:3D:4E:5F" for mac in $macignore; do     grep -q $mac /tmp/wlclient.lst if [ $? -gt 0 ]; then echo $mac >> /tmp/wlclient.lst fi  done maclist=$(wl -i $(nvram get wl0_ifname) assoclist | cut -d" " -f2) for mac in $maclist; do     grep -q $mac /tmp/wlclient.lst if [ $? -gt 0 ]; then echo $mac >> /tmp/wlclient.lst inf=$(arp | grep $mac) if [ $? -gt 0 ]; then msg="$msg""Unknown at ${mac}\n" else msg="$msg""${inf}\n" fi     fi   done #Uncomment the following line if you want to remove disconnected clients from the previously connected list #echo "$maclist" | tr ' ' '\n' > /tmp/wlclient.lst if [ -n "$msg" ]; then msg=$(echo -e "$msg") fnc_mail "New Wireless Client(s)" "$msg" fi fi