coolchevy's blog | Life and experience

Smartphone Domino Machine

coolchevy — Fri, 04 Jun 2010 07:54:23 +0000

Shell script to convert .flac files to .mp3 format

coolchevy — Thu, 03 Jun 2010 22:26:00 +0000

#!/bin/bash # A Shell Script To Convert All .flac Files To .MP3 Format METAFLAC=/usr/bin/metaflac FLAC=/usr/bin/flac ID3=/usr/bin/id3 LAME=/usr/bin/lame FIND=/usr/bin/find t=$(${FIND} . -type f -iname "*.flac") if [ "$t" == "" ] then echo "There are no *.flac file in $(pwd) directory" exit 1 fi for f in *.flac do OUTF=$(echo "$f" | sed s/\.flac$/.mp3/g) [...]

Ordering related objects in Django

coolchevy — Tue, 01 Jun 2010 16:15:25 +0000

Django models have a meta option order_with_respect_to that allows you to order objects within the scope of a related ForeignKey object. This option adds an _order column to the model's database table to keep track of this ordering. That's all very well, but if you need to change the sequence order you may well feel [...]

A New Type of Phishing Attack

coolchevy — Tue, 25 May 2010 08:36:25 +0000

What we don’t expect is that a page we’ve been looking at will change behind our backs, when we aren’t looking. That’ll catch us by surprise bgattack.js

dhcpdump: Monitor DHCP Traffic For Debugging Purpose

coolchevy — Tue, 18 May 2010 08:33:05 +0000

How do I dump DHCP packets under Linux / UNIX for monitoring or debugging purpose You can parse DHCP packets using tcpdump and dhcpdump programs. dhcpdump provides a tool for visualization of DHCP packets as recorded and output by tcpdump to analyze DHCP server responses. Example for tcpdump: # tcpdump -lenx -i eth0 -s 1500 [...]