Ubuntu (jaunty/9.04) - Delay in print dialog

We use a 'Konica Minolta c451' printer at work and I have been having this issue since I upgraded to Ubuntu 9.04 (Jaunty). The bug has been reported here: https://bugs.launchpad.net/ubuntu/+source/gtk+2.0/+bug/475845

The temporary recommended solution is to comment out the following in /etc/cups/cupsd.conf:

##Listen /var/run/cups/cups.sock

Extracting subtitles with MKVmerge

check the tracks with:

mkvinfo "filename.mkv"

extract the subtitle track with:

mkvextract tracks "filename.mkv" 3:subs.srt

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'