Decode captcha in bash

1. convert input image to grayscale using imagemagik
   

   convert input.png -colorspace Gray output.tif

2. decode with tesseract
   

   tesseract output.tif result; cat result.txt
   

   
   

Bash wordlist/dictionary generator for brute-forcing

This example code will generate passwords of 4 characters only. To generate bigger passwords, there has to be more loops (pretty obvious in the code below). Happy Brute-forcing !!

    1 #!/bin/bash
    2 
    3 list=`echo {0..9} {a..z} {A..Z}`
    4 
    5 for c1 in $list
    6 do
    7  for c2 in $list
    8  do
    9   for c3 in $list
   10   do
   11    for c4 in $list
   12    do
   13     echo $c1$c2$c3$c4
   14    done
   15   done
   16  done
   17 done
   18 

Cutting MKV files with 'mkvmerge'

mkvmerge --split timecodes:00:28:00,00:34:42 'input.mkv' -o 'output.mkv'

Ubuntu/Debian :: watching trailers from Apple

apt-get install mplayer mozilla-mplayer

Getting Broadcom CrystalHD into AppleTV [[ A 2 Z ;-) ]]

If you don't happen to know much about "crystalHD" yet, you will find the gist of the story here: http://xbmc.org/davilla/2009/12/29/broadcom-crystal-hd-its-magic/. In short, it's a mini pci-e card which lets you decode "H264" in hardware.

Can't wait to see the proper driver and XBMC version which will leave everyone with the possibility to have a kick-ass media center for the living room:

Which card to buy: BCM970012 or BCM970015 ?

Answer:  BCM970015.
Why: http://www.logicsupply.com/blog/2010/08/09/next-gen-broadcom-hardware-decoder-one-chip-many-advantages/

1. Installing hardware 
   http://rufn.it/aTV/
   http://patchstick.wikispaces.com/Broadcom+Installation
2. Installing driver
   http://todayguesswhat.blogspot.com/2010/01/thanks-davilla-and-xbmc-team-apple-tv.html
3. Installing XBMC
   
   (manual process)
   replace "latest.dmg" with the version you want. You can get a list of version on this website: http://mirrors.xbmc.org/
   

------------------------------------------------------------------------------SSH into ATV (username: frontrow, password: frontrow)
 
cd Downloads 
 
wget http://mirrors.xbmc.org/nightlies/osx/latest.dmg
or, curl http://mirrors.xbmc.org/nightlies/osx/latest.dmg

sudo hdutil mount latest.dmg
cp -r /Volumes/XBMC/XBMC.app /Users/frontrow/Applications/
sudo reboot
------------------------------------------------------------------------------

(automatic process)

Installing XBMC and CrystalHD drivers by "Launcher":

• DON'T RUN THE "DEFAULTS" COMMANDS WITH SUDO.
  

• defaults write com.teamxbmc.xbmclauncher XBMCAdditionalDownloadPlistURLs -array-add http://mirrors.xbmc.org/nightlies/osx/update_urls.plist

• defaults write com.teamxbmc.xbmclauncher XBMCAdditionalDownloadPlistURLs -array-add http://crystalhd.sartori.at/files/crystalhd.plist
• defaults write com.teamxbmc.xbmclauncher XBMCAdditionalDownloadPlistURLs -array-add http://www.sshcs.com/xbmc/Info.asp
  
• REBOOT. THERE SHOULD BE TWO NEW ENTRIES UNDER "LAUNCHER" MENU NAMELY - NIGHTLIES, CRYSTAL-HD.

Checking Crystal-HD:

• grep -i crystal /Users/frontrow/Library/Logs/xbmc.log
• dmesg | grep -i crystal 

Getting Other log files:

• xbmc.log: /Users/frontorw/Library/Logs/xbmc.log
• Console log: /Library/Logs/Console/501/console.log
• Crashreporter log: /Users/frontrow/Library/Logs/CrashReporter/CrashReporter.log

More Info:

• http://wiki.awkwardtv.org/wiki/Broadcom_HD_Decoder 

CrystalHD-UBUNTU:This is a live ubuntu with crystalHD driver and xbmc, bootable from USB stick.

• Source: http://forum.xbmc.org/showthread.php?t=74992
• Download:
  
  • http://www.surfanddestroy.org/resources/xbmc-r28256-crystalHD-1.0.3-alsa-1.019-nvidia100.14.19-hardy-cust_machkernel-2.6.24.27.rar
  • http://stmlabs.com/resources/xbmc-r28256-crystalHD-1.0.3-alsa-1.019-nvidia100.14.19-hardy-cust_machkernel-2.6.24.27.rar
    
    MD5 hash: d4cb24bca0042e84425ab23454a5bab4
    

Installing Ubuntu on AppleTV:

There is a very nicely written wiki located here:

• http://wiki.xbmc.org/index.php?title=HOW-TO_install_a_Miminal_Ubuntu_and_XBMC_with_sound_over_HDMI_on_the_AppleTV

Related Threads on XBMC Forum:

1. http://forum.xbmc.org/showthread.php?t=81209
   
   Quotes:
   
   

   atv(osx) has a quirk that limits display to 720p, it's been discussed about a million times and here's a trac ticket for it.
   
   atv(linux) has no such limit, xorg controls display resolutions that are available.
   --
   davilla
   Team-XBMC Developer
   2010-09-20, 10:21

Debian/Ubuntu: highlight and publish source codes

The tool is called - "highlight"

apt-get install highlight
man highlight

Perfect for publishing, integrating source-codes in tex and on websites. I like the following for my codes:

highlight --pretty-symbols --inline-css -I -l _FILE_NAME_ --style $ide -V > tmp; firefox tmp &

In firefox, one can do "View Page Source" and copy&paste.

Automate downloading from hotfile.com

    1 #!/bin/bash
    2 
    3 RED='\e[1;31m'
    4 CYAN='\e[1;36m'
    5 NC='\e[0m' # No Color
    6 
    7 if [ -z "$1" ]
    8 then
    9  echo
   10  echo -e "${RED}[+] usage: ${CYAN}`basename $0`   http://hotfile.com/...
   11  /filename.rar.html${NC}"
   12  echo
   13  exit
   14 fi
   15 
   16 url="$1"
   17 
   18 echo
   19 echo -e "[+] Input URL : ${RED}$url${NC}"
   20 
   21 tm_='1245072880'
   22 tmhash_='e5b845119f0055c5d8554ee5f2ffc7b2d5ef86d7'
   23 wait_='30'
   24 waithash_='3bf07c5d83f2e652ff22eeaee00a6f08d4d2409a'
   25 action_='capt'
   26 
   27 line_with_url='http://hotfile.com/get/'
   28 
   29 url2=`wget -q "$url" --post-data "tm=${tm_}&tmhash=${tmhash_}&wait=${wait_}
   30 &waithash=${waithash_}&action=${action_}" -O - | grep "$line_with_url" |
   31 sed -s 's/.*<a href="\([^"]*\)".*$/\1/g'`
   32 
   33 echo -e "[+] Real URL  : ${RED}$url2 ${NC}"
   34 echo
   35 
   36 if [ ! -z "$url2" ]
   37 then
   38  wget "$url2"
   39 fi
   40 

Debian/Ubuntu: stopping a package from upgrade

• Find package name
  

  dpkg -l | grep "partial-name"
  

• Set package to hold
  

  echo "full-package-name hold" | dpkg --set-selections

• Set package to un-hold
  

  echo "full-package-name install" | dpkg --set-selections