#!/bin/bash
# iget.sh
#
#  Author: Gregory Strike
#     URL: http://www.gregorystrike.com/2007/06/06/bash-script-interval-get/
#
# Purpose: This script downloads a file from the Internet at a set interval.
#
#  example input ./iget.sh http://nfl.packers.com/multimedia/live_cams/image.jpeg lambeau.jpg 60
# Syntax:
# iget url filename i
# Where filename = The custom file name
# Where i = the interval of the download in seconds
REQPARAMS=3
url=$1
filename=$2
interval=$3
function download()
{
        #http://www.wluk.com/lambeaucam/lambeaucam.jpg
        wget $url -O $(date '+%Y-%m-%d_%H%M%S')_$filename
}
function pause()
{
        echo Downloading $url...
        echo Interval is set to $interval seconds...
        echo -n "Next download in "
        (( intervalleft=interval ))
        while (( intervalleft > 0 ))
        do
                echo -n -e "$intervalleft seconds..."
                if ((${intervalleft:${#intervalleft}-1:1}==9))#Detects if there is a nine at the end
                        then
                        echo -n -e " \\b"                       #If so, write a space and then backspace
                fi
                sleep 1                                         #Zzzzzz...  For 1 second.
                echo -n -e \\b\\b\\b\\b\\b\\b\\b\\b\\b\\b\\b    #Erases the "seconds..."
                backspaces=${#intervalleft}                     #Get the current number of digits
                while (( backspaces > 0 ))                      #Loop until the last digit has been backspaced
                do
                        echo -n -e \\b
                        (( backspaces-- ))
                done
                (( intervalleft-- ))
        done
}
if (( $# != $REQPARAMS ))
        then
                echo "Error: Incorrect Syntax"
                echo "Required: " $REQPARAMS " Passed: " $#
                echo
                echo "Syntax: ./iget.sh url filename interval"
                echo "URL = The URL/location of the file."
                echo "FILENAME = Base name of the file saved locally."
                echo "INTERVAL = The seconds between downloads."
        exit
fi
while ((1))
do
        download
        pause
done

ERROR: unable to download video info webpage: HTTP Error 402: Payment Required (caused by HTTPError())

HTTP Error 429: Too Many Requests or 402: Payment Required

These two error codes indicate that the service is blocking your IP address because of overuse. Contact the service and ask them to unblock your IP address, or - if you have acquired a whitelisted IP address already - use the --proxy or --source-address options to select another IP address.

wget $url -O $(date '+%Y-%m-%d_%H%M%S')_$filename