Learn bash scripting in just 10 seconds flat

What? You say you have taken more than 10 secs to read the guide ? Then please enter a comment explaining your reasons for taking so much time and I will send you a free gift as compensation for the extra time you spent here.But if you have taken less than 10 secs to read through the guide, please enter a comment explaining how you accomplished this extraordinary feat. And I will send you a free gift too.

All about Linux: 10 Seconds Guide to Bash Shell Scripting

A very nice guide to keep yourself uptodate with bash scripting. And yes, you get a very beautiful PDF document if you enter a comment explaining why it took you more than or less than that time to cover the guide. I like this blog.