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Using python's eval() vs. ast.literal_eval()?

...thon literal structures: strings, numbers, tuples, lists, dicts, booleans, and None. Passing __import__('os').system('rm -rf /a-path-you-really-care-about') into ast.literal_eval() will raise an error, but eval() will happily wipe your drive. Since it looks like you're only letting the user input...
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Can a shell script set environment variables of the calling shell? [duplicate]

... Your shell process has a copy of the parent's environment and no access to the parent process's environment whatsoever. When your shell process terminates any changes you've made to its environment are lost. Sourcing a script file is the most commonly used method for configuring a s...
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ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()

...Garbage Collector could move it at any time. Arrays are objects in Java, and the way data is stored inside that object could vary from one JVM implementation to another. For this reason, the notion of a direct buffer was introduced. Direct buffers are intended for interaction with...
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PHP passing $_GET in linux command prompt

... Typically, for passing arguments to a command line script, you will use either argv global variable or getopt: // bash command: // php -e myscript.php hello echo $argv[1]; // prints hello // bash command: // php -e myscript.php -f=world $opts = getopt('f:'); ec...
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How do you round to 1 decimal place in Javascript?

...railing zeros // So, just make sure it is the last step before output, // and use a number format during calculations! EDIT: Add round with precision function... Using this principle, for reference, here is a handy little round function that takes precision... function round(value, precision) {...
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How do browsers pause/change Javascript when tab or window is not active?

...st is quite CPU intensive. requestAnimationFrame is not supported by IE 9- and Opera 12-. The test logs the actual time it takes for a setInterval and requestAnimationFrame to run in different browsers, and gives you the results in the form of a distribution. You can change the number of millisecon...
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What's the difference between “Architectures” and “Valid Architectures” in Xcode Build Settings?

What's the meaning of them and can I set them in different values? 2 Answers 2 ...
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HTML in string resource?

... You can also surround your html in a CDATA block as well and getString() will return your actual HTML. Like such: <string name="foo"><![CDATA[Foo Bar <a href="foo?id=%s">baz</a> is cool]]></string> Now when you perform a getString(R.string.foo) the...
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How to replace an entire line in a text file by line number

... For me it says: sed: -e expression #1, char 26: unknown option to ``s' and my line is: sed -i '7s/.*/<param-value>http://localhost:8080/ASDF/services/REWS.REWSHttpSoap12Endpoint/</param-value>/' $TCE_SVN_HOME\trunk\tce\EWC\WebContent\WEB-INF\web.xml. Any idea? –...
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Maven Modules + Building a Single Specific Module

I have a multi-module Maven project with a parent project P and three sub-modules A , B , and C . Both B and C are war projects and both depend on A . ...