wget script hacking the Cisco DPC3825

My ISP at home has some of the best prices on high speed Internet around. They can do this because they only use the most budget of all the junky equipment small amounts of money can buy. Ever since I first subscribed my home router (CATV modem) will progressively get slower and slow with decreasing Wi-Fi range until I go through the steps to login to the web interface and click "Reset" or pull the power and plug it back in. After that it is good for a few days. The problem with that is it dies at the worst time. I have complained for many months but the only thing that happens is they replace the junk modem with another junk modem.


The best way to solve this is to create a wget script that cron will run around 4:00 AM when no one is using the Internet. The script will reboot the modem and have it ready for me to use problem free all day.

wget is a very powerful command line web client. Reading the source file of the page you want to script you can automate almost any action.

#!/bin/bash

wget \
  --save-cookies=cookies \
  --post-data="username_login=cusadmin&password_login=yourpassword" \
  http://192.168.0.1/goform/Docsis_system -O /dev/null 2>&1

wget \
  --load-cookies=cookies \
  --post-data="devicerestart=1" \
  http://192.168.0.1/goform/Devicerestart -O /dev/null 2>&1

svn log to RPM change history, the Ruby way

This is the Ruby version of the AWK script to convert SVN logs to a change history report suitable for use in an RPM spec file.

I tried to keep the code very similar to the AWK version but there are many ways this code could be optimized to reduce the number of lines.

#!/usr/bin/ruby

require 'date'

nextRow = 0
lastDate = ""
lastRev = ""
newDate = ""
newRev = ""
docs = Array.new

$stdin.each_line do |l|
 if l.include?("-"*72) 
  nextRow = 0
 else
   if nextRow > 0
    if l.chomp.length == 0
     nextRow += 1
    else
     docs.push(l)
    end
   else
    $Sl = l.split
    newRev = $Sl[0]
    newDate = $Sl[4]
    nextRow += 1
    if lastDate != ""
     if lastDate != newDate and docs.length > 0
      printf "* %s Revision %s\n", Date.parse(lastDate).strftime("%a %b %d %Y"), lastRev
      docs.each { |dl|
       puts "- #{dl}"
      }
      puts
      docs.clear
     end
    end
    lastDate = newDate
    lastRev = newRev
   end
 end
end

if docs.length > 0
 printf "* %s Revision %s\n", Date.parse(lastDate).strftime("%a %b %d %Y"), lastRev
 docs.each { |dl|
  puts "- #{dl}"
 }
end