Finding the Focal Length Usage for your photos

find /$PHOTODIR/ -name "*.JPG" -exec "exiftool {}" \; | grep "Focal Length" | split -f2 -d":" | sed "s/.0//" | sort -g | uniq -c > FocalLength.txt

Reference: http://www.pentaxforums.com/forums/249573-post5.html

I have also used Exiftool to extract that information directly and use GNUPlot for plotting them, simple and nice!

Dell BIOS Update in Ubuntu

What if you don't have (read: don't want) Windows on your box to do the BIOS updates.

Here is a very good explanation.

Picasa 3.9 Update on Ubuntu

Cool!

http://www.webupd8.org/2010/04/how-to-install-picasa-36-in-ubuntu.html

LAMP and Drupal installation on Ubuntu

Easy LAMP install:
sudo tasksel install lamp-server


Drupal install instructions:
Reference: https://help.ubuntu.com/community/Drupal

Converting PDF to PNG/JPG in Ubuntu

As described here

Extract PDF Pages on Linux

Here

Finding shutter actuations on your Canon DSLR

I used gphoto2 on Linux, actual command is:

gphoto2 --get-config /main/status/shuttercounter

connect your camera to USB on computer and run this :)