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What is the benefit of using $() instead of backticks in shell scripts?
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An example, though somewhat contrived:
deps=$(find /dir -name $(ls -1tr 201112[0-9][0-9]*.txt | tail -1l) -print)
which will give you a list of all files in the /dir directory tree which have the same name as the earliest dated text file from December 2011 (a).
Another example would be somethi...
Convert a string representation of a hex dump to a byte array using Java?
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24 Answers
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How to find out which processes are using swap space in Linux?
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81M of swap, but it also reports my system as a whole is using only 2M
of swap. Therefore, I will not add a similar Swap column to htop
because I don't know a reliable way to get this information (actually,
I don't think it's possible to get an exact number, because of shared
pages).
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How do I print the type of a variable in Rust?
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182
If you merely wish to find out the type of a variable and are willing to do it at compile time, ...
how to ignore namespaces with XPath
... Dirk VollmarDirk Vollmar
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Mocking python function based on input arguments
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>>> m = MagicMock(side_effect=side_effect)
>>> m(1)
2
>>> m(2)
3
>>> m.mock_calls
[call(1), call(2)]
http://www.voidspace.org.uk/python/mock/mock.html#calling
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What do the different readystates in XMLHttpRequest mean, and how can I use them?
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172
The full list of readyState values is:
State Description
0 The request is not initialized...
When should I use a struct instead of a class?
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297
MSDN has the answer:
Choosing Between Classes and Structures.
Basically, that page gives you ...
Android SDK on a 64-bit linux machine
...n a 64-bit linux machine. The available SDK downloads seem to be just for 32-bit versions of Linux.
15 Answers
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Http长连接200万尝试及调优 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Http长连接200万尝试及调优对于一个server，我们一般考虑他所能支撑的qps，但有那么一种应用， 我们需要关注的是它能支撑的连接数个数，而并非qps，当然qps也是我们...对于一个server，我们一般考虑他所能支撑的qps，但有那么一...