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Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----

Recently I am using Python module os, when I tried to change the permission of a file, I did not get the expected result. For example, I intended to change the permission to rw-rw-r--, ...
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Preferred method to store PHP arrays (json_encode vs serialize)

...oment. A simple speed test to compare the two <?php ini_set('display_errors', 1); error_reporting(E_ALL); // Make a big, honkin test array // You may need to adjust this depth to avoid memory limit errors $testArray = fillArray(0, 5); // Time json encoding $start = microtime(true); json_enco...
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What is the $? (dollar question mark) variable in shell scripting? [duplicate]

... Not just error code. It's the returned status code of any command. – mehulkar Jul 8 '14 at 17:44 10 ...
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Dark theme in Netbeans 7 or 8

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How to remove all MySQL tables from the command-line without DROP database permissions? [duplicate]

...evart's version is correct, but here are some improvements to avoid having error. I've edited the @Devart's answer, but it was not accepted. SET FOREIGN_KEY_CHECKS = 0; SET GROUP_CONCAT_MAX_LEN=32768; SET @tables = NULL; SELECT GROUP_CONCAT('`', table_name, '`') INTO @tables FROM information_sche...
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Simplest/Cleanest way to implement singleton in JavaScript?

... //and refer to the same instance. Another option is to //throw an error. return Foo._instance; } Foo._instance = this; //Foo initialization code }; Foo.getInstance = function () { "use strict"; return Foo._instance || new Foo(); } long form, using module pattern...
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VBA - how to conditionally skip a for loop iteration

...write robust VBA without the Goto statement simply because you need it for error handling (i.e., On Error Goto). – mwolfe02 Feb 25 '15 at 0:55 ...
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Get value from JToken that may not exist (best practices)

What's the best practice for retrieving JSON values that may not even exist in C# using Json.NET ? 6 Answers ...
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Python, Unicode, and the Windows console

... try to print a Unicode string in a Windows console, I get a UnicodeEncodeError: 'charmap' codec can't encode character .... error. I assume this is because the Windows console does not accept Unicode-only characters. What's the best way around this? Is there any way I can make Python automatical...
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Coding Katas for practicing the refactoring of legacy code

I've gotten quite interested in coding katas in recent months. I believe they are a great way to hone my programming skills and improve the quality of the code I write on the job. ...