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  What are some lesser known but useful Unix commands?

A few that come to mind, some less known, some more: xargs or parallel: run things in parallel, with lots of options sed and awk: more well-known but still super useful for processing text files, and faster than Python or Ruby m4: simple macro processor screen: powerful terminal multiplexing and session persistence yes: print a string a lot cal: nice calendar env: run a command (useful in scripts) look: find English words (or lines in a file) beginning with a string cut and paste and join: data...

   Linux,Unix,Command,Less used     2011-12-27 09:27:49

  Why I love Common Lisp and hate Java

“Common what?” is a common reply I get when I mention Common Lisp. Perhaps rightly so, since Common Lisp is not all that common these days. Developed in the sixties, it is one of the oldest programming languages out there. In its heydays it was used mostly for Artificial Intelligence research at MIT, Stanford, Carnegie Mellon and the like, and therefore has a lingering association with AI. People not in AI shy away from Lisp. Common Lisp is a powerful and versatile program...

   Lisp,Java,Comparison,Common Lisp     2012-01-30 05:48:16

  Web Consistency Testing

Introduction Web Consistency Testing is a new form of Web testing that aims to answer the simple question: does this page look right? It's an automated approach to making sure a page looks the way we expect, whether that be cross-browser, over time (regression), in multiple locales, or whatever else we can think of. Kevin Menard, founder of Mogotest, presented an in-depth talk about what Web Consistency Testi...

   Website,Consistency,Testing,Consistency testing,Advice     2011-12-01 02:52:30

  The Programmer Salary Taboo

Salary is an interesting topic. It's certainly one everyone has an opinion on. It's also a uniquely taboo subject among members of the working public. Since I'm about a month away from being done with University and entering the programmer workforce, I've taken to asking my classmates what type of starting salaries they're getting at their first jobs. The first thing I discovered is that not everybody is very comfortable with this question, and many companies are even less so. Microsoft requests...

   Salary,IT company,Taboo,Google,Microsoft     2011-04-18 00:19:03

  Deploy the political campaign with all guns blazing through predictive dialer

The US Presidential election 2016 is turning out as more of a global event day by day, as it’s going to influence numerous countries around the world in one or other way. It is getting more and more intense as D-day is coming closer. You can experience the energy in candidates’ vociferous debates, where they put forward their agendas, their point of views, which give us the glimpse of their philosophy and their vision towards the betterment of the country. Whether it is Democratic o...

   AUTO DIALER,PREDICTIVE DIALER,CLOUD AUTO DIALER,POLITICAL     2015-09-28 12:33:14

  Check out Google Reader substitutes

It's only a few hours left that Google Reader will be shut down Since Google decides to decommission such a good product, many people are disappointed about Google. The gene of Google is completely different from Facebook, The strategy of promoting Google+ everywhere is becoming a bit offensive. As a heavy user of Google Reader, people have to start looking for an alternative, Below we give a comparison of different Google Reader substitutes. And we compare them with following parameters: Lload...

   RSS reader,Google Reader,Feedly     2013-06-30 08:46:42

  Why Python is important for you

I believe that Python is important for software development. While there are more powerful languages (e.g. Lisp), faster languages (e.g. C), more used languages (e.g. Java), and weirder languages (e.g. Haskell), Python gets a lot of different things right, and right in a combination that no other language I know of has done so far. It recognises that you’ll spend a lot more time reading code than writing it, and focuses on guiding developers to write readable code. It’s possible to...

   Python,Importance,Paradigm     2012-02-12 04:49:09

  Ways to check existence of JavaScript object

The design of JavaScript is not so sophisticated. It's very easy for us to make mistakes if we are not very careful when using JavaScript. For example, to check the existence of JavaScript object. Now we want to check whether a global object myObj exists or not, if it doesn't exist, we declare it. The pseudo code for this is : if(myObj not exist){ declare myObj; } You may think it's very easy to write the code. In fact, it is much more difficult than we may think. Juriy Zaytsev says there are m...

   JAVASCRIPT,OBJECT,EXISTENCE     2020-09-12 02:14:02

  Frequently used Git commands

Git configuration git config --global user.name "robbin" git config --global user.email "fankai@gmail.com" git config --global color.ui true git config --global alias.co checkout git config --global alias.ci commit git config --global alias.st status git config --global alias.br branch git config --global core.editor "mate -w" # Configure Editor to use textmate git config -l #List all configurations User's git configuration file : ~/.gitconfig Frequently used Git commands Check、add...

   Git,Command     2013-03-11 19:41:06

  Practice of using spinlock instead of mutex

Spinlock and mutex are two important concepts in multithreading programs. They are used to lock some shared resource to prevent concurrent access which may affect data consistency. But they do have differences, what are the differences? when should we use spinlock instead of mutex? The Theory In theory, when a thread tries to lock a mutex and it does not succeed, because the mutex is already locked, it will go to sleep, immediately allowing another thread to run. It will continue to sleep until...

   Spinlock,Mutex,Concurrency     2014-04-19 21:54:12

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