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Efficiently test if a port is open on Linux?
From a bash script how can I quickly find out whether a port 445 is open/listening on a server.
14 Answers
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Join a list of strings in python and wrap each string in quotation marks
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How can I brew link a specific version?
I have a few kegs of the same package in /usr/local/Cellar/libfoo like /usr/local/Cellar/libfoo/1.0.1 , /usr/local/Cellar/libfoo/HEAD and /usr/local/Cellar/libfoo/mycopy
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Change navbar color in Twitter Bootstrap
How would I go about modifying the CSS to change the color of the navbar in Twitter Bootstrap?
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How do I iterate over an NSArray?
I'm looking for the standard idiom to iterate over an NSArray. My code needs to be suitable for OS X 10.4+.
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Find the version of an installed npm package
How to find the version of an installed node.js/npm package ?
27 Answers
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How to get an enum which is created in attrs.xml in code
I created a custom View (find it here ) with an declare-styleable attribute of type enum. In xml I can now choose one of the enum entries for my custom attribute. Now I want to create an method to set this value programmatically, but I can not access the enum.
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Calculating frames per second in a game
What's a good algorithm for calculating frames per second in a game? I want to show it as a number in the corner of the screen. If I just look at how long it took to render the last frame the number changes too fast.
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Why am I seeing “TypeError: string indices must be integers”?
I'm playing with both learning python and trying to get github issues into a readable form. Using the advice on How can I convert JSON to CSV? I came up with this:
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What is the difference between ~> and >= when specifying rubygem in Gemfile?
I often see the following notation(~>) in Gemfile.
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