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When is the thread pool used?

So I have an understanding of how Node.js works: it has a single listener thread that receives an event and then delegates it to a worker pool. The worker thread notifies the listener once it completes the work, and the listener then returns the response to the caller. ...
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Command line CSV viewer? [closed]

Anyone know of a command-line CSV viewer for Linux/OS X? I'm thinking of something like less but that spaces out the columns in a more readable way. (I'd be fine with opening it with OpenOffice Calc or Excel, but that's way too overpowered for just looking at the data like I need to.) Having ...
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Why can't I use Docker CMD multiple times to run multiple services?

... really is runtime information. Just like EXPOSE, but contrary to e.g. RUN and ADD. By this, I mean that you can override it later, in an extending Dockerfile, or simple in your run command, which is what you are experiencing. At all times, there can be only one CMD. If you want to run multiple ser...
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Differences between fork and exec

What are the differences between fork and exec ? 9 Answers 9 ...
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Changing every value in a hash in Ruby

I want to change every value in a hash so as to add '%' before and after the value so 11 Answers ...
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How can I use xargs to copy files that have spaces and quotes in their names?

I'm trying to copy a bunch of files below a directory and a number of the files have spaces and single-quotes in their names. When I try to string together find and grep with xargs , I get the following error: ...
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Functional programming - is immutability expensive? [closed]

...arify some points. The “in-place” quicksort isn’t really in-place (and quicksort is not by definition in-place). It requires additional storage in the form of stack space for the recursive step, which is in the order of O(log n) in the best case, but O(n) in the worst case. Implementing a fu...
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Why is not in HTML 5 Tag list while is?

... +1. Excellent point about semantics and clearly the best answer so far. – ЯegDwight Feb 14 '10 at 3:30 9 ...
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Writing Unicode text to a text file?

I'm pulling data out of a Google doc, processing it, and writing it to a file (that eventually I will paste into a Wordpress page). ...
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Ruby on Rails - Import Data from a CSV file

...ase table. I do not want to save the CSV file, just take the data from it and put it into the existing table. I am using Ruby 1.9.2 and Rails 3. ...