Toggle internet connection

#!/bin/bash
# Filename: connect.sh
# Author: robz
# Version 300511
# Toggle internet connection on/off.
# This works with the USB Speedtouch 330 (old silver squashed frog design)
# Go to right click Applications > Edit menus and create a new launcher with
# this line - "home/<user>/.scripts/connect.sh"

SOUND="/usr/share/sounds/ubuntu/stereo/dialog-question.ogg"
ICON="/usr/share/icons/gnome/48x48/status/network-offline.png"
ICON2="/usr/share/icons/gnome/48x48/status/network-transmit-receive.png"
ICON3="/usr/share/icons/gnome/48x48/status/network-error.png"

text_log ()
{
TEXT=$(dmesg | awk /"line is up"/'{ print $10$11,$12,"-",$14$15,$16 }' | \
tr -d "()")
notify-send -i $ICON2 " ## ADSL is connected ##" "Max - $TEXT"
echo $(date +%d/%m/%y" "%a" "%T)" -- "$TEXT >> $HOME/.dsl-sync.log
}

ps ax | grep p[p]pd > /dev/null
if [ $? = 0 ]; then
    notify-send -i $ICON "## Disconnecting ADSL ##" &
    poff
else
    notify-send -i $ICON2 "## Connecting ADSL ##" &
    pon adsl && sleep 15
    ping -c1 google.com 2>&1
    if [ $? = 0 ]; then
        text_log
    else
        notify-send -i $ICON3 "## Not Connected ! ##" &
        /usr/bin/canberra-gtk-play --volume 2 -f $SOUND &
    fi
fi