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How to do a logical OR operation in shell scripting

...not that unix doesn't use them, it's that bash and all the other shells I know use them for input/output redirection. – Cascabel Nov 6 '10 at 2:28 add a comment ...
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np.mean() vs np.average() in Python NumPy?

... already noted, there's another extremely important difference that I just now discovered the hard way: unlike np.mean, np.average doesn't allow the dtype keyword, which is essential for getting correct results in some cases. I have a very large single-precision array that is accessed from an h5 f...
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Differences between Perl and PHP [closed]

I'm planning to learn Perl 5 and as I have only used PHP until now, I wanted to know a bit about how the languages differ from each other. ...
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Why does Maven have such a bad rep? [closed]

...how Maven is bad. I have been using some features of Maven for a few years now and the most important benefit in my view is the dependency management. ...
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How to avoid long nesting of asynchronous functions in Node.js

...lback(null, 'three'); }, function(arg1, callback){ // arg1 now equals 'three' callback(null, 'done'); } ], function (err, result) { // result now equals 'done' }); As for the req,res variables, they will be shared within the same scope as function(req,res){} whi...
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MySql export schema without data

I'm using a MySql database with a Java program, now I want to give the program to somebody else. 13 Answers ...
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Split string on whitespace in Python [duplicate]

... Also good to know is that if you want the first word only (which means passing 1 as second argument), you can use None as the first argument: s.split(None, 1) – yak Nov 13 '11 at 19:00 ...
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How to make a great R reproducible example

...t, to compare solutions between themselves, and this way users that don't know (and don't need to know) functions like runif or sample are not confused that they can't get the same data. – Moody_Mudskipper Aug 10 '18 at 8:51 ...
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Can Protractor and Karma be used together?

... mix that config with the one usually used to run Karma regular and fast. Now, having your dedicated small services tested, you can safely and easily mock them to test your other logic and put these tests into your regular Karma setup. To summarize. Use Karma to run any set of JavaScript files. ...
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Asking the user for input until they give a valid response

.... Feel free to use them in any context, without my explicit permission or knowledge. Regarding the non-code-block segments, If you want to paste my entire answer into a "Learn Python" book you're writing, let's talk royalties ;-) – Kevin Jul 24 at 13:50 ...