R.I.P
He is really a wonderful person. His blog CoolShell helped countless people starting the career in programming. It's been a long journey for me through my undergrad and now PhD student in CS, but I still remember the time that learnt quite a lot from his blog. It's still stared on my homepage all the time. I'll carry on his passion about explaining many complicate concepts in software engineering.
R.I.P...Learn tons of things from his blogger and posts.Take care, guys.