Paper Reading - Fundamental Concepts In Programming Languages

This is a holiday reading summary. I recently came across two interesting blogs on fundamental concepts in computer science, both with the title “10 Papers Every Programmer Should Read (At Least Twice)”. One could be found in here, and another one in Fogus’ blog. Topics of these papers range from Programming Language theories, functional programming, to Lamport’s distributed system theories. I will read and summarize some of them in my blog. It’ll be 20 papers, and 40 paper-readings to do if I do read each one twice. So, it might be a long time before all is finished.

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A Dive Into Password


The passwd is program on Unix systems to manage users’ passwords. The user and password information on most Unix systems is stored in two separate files: /etc/passwd for user information, and /etc/shadow for password information, including encrypted password value, expiration data, UID, GID, and etc… The rationale behind storing information in separate files is discussed in Why shadow your passwd file?

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A New Blog For My Tech Notes

Hello World!

It’s been a while since the last time I ever wrote some serious blog posts. After some thought I now decide to separate my everyday chit-chat blog from a more tech-oriented blog, so that contents from either sides won’t get entwined with each other, especially when I decide to blog in both languages.

For a more tech-oriented blog I’d like to keep everything in English. For I believe it’s a language most tech people could understand, even in China. And now I could publish all my discoveries, my thoughts, my ideas centered around technology in this blog, and welcome discussions. Blogging is a beautiful way of communication, and hopefully I could make friends with like-minded through keeping this blog.

And there it goes. A brand new blogging journey!