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Simulate delayed and dropped packets on Linux

...ys in increments of 10 ms. On 2.6, the value is a configuration parameter from 1000 to 100 Hz. Later examples just change parameters without reloading the qdisc Real wide area networks show variability so it is possible to add random variation. # tc qdisc change dev eth0 root netem dela...
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In PHP what does it mean by a function being binary-safe?

...e built-in PHP function strlen() is a binary-safe function? I'm confirming from you because on the PHP Manual page for the function strlen() it's not been mentioned that whether it's a binary-safe function or a non-binary safe function. This only missing thing from the PHP Manual is creating the con...
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counting number of directories in a specific directory

...cusive in directories, -type d means directory, and wc -l means line count from given directory listing – shiyani suresh Jan 22 '16 at 0:33 ...
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is there a Java equivalent to null coalescing operator (??) in C#? [duplicate]

... int y = firstNonNull(calculateNullableValue(), -1); since it saves you from either calling the potentially expensive method twice or declaring a local variable in your code to reference twice. share | ...
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Is there any way to see the file system on the iOS simulator?

...tors (4.0, 4.1, 5.0, etc) you have ever run, go to the one you are running from in Xcode. Once in a folder, go to Applications, choose the Finder option that shows date for files, and sort by date. Your application will be the most recent since it just changed the directory... Inside the director...
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How do I import the Django DoesNotExist exception?

... - before it is passed to assertRaises. You need to separate the arguments from the callable, as described in the unittest documentation: self.assertRaises(Answer.DoesNotExist, Answer.objects.get, body__exact='<p>User can reply to discussion.</p>') or better: with self.assertRaises(A...
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What is q=0.5 in Accept* HTTP headers?

... what language the user would prefer, on a scale of 0 to 1, as can be seen from the HTTP/1.1 Specification, §14.4: Each language-range MAY be given an associated quality value which represents an estimate of the user's preference for the languages specified by that range. The quality value default...
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How to force table cell content to wrap?

...as necessary to fill line boxes. pre : This value prevents user agents from collapsing sequences of white space. Lines are only broken at preserved newline characters. nowrap : This value collapses white space as for normal, but suppresses line breaks within text. pre-wrap : This val...
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How do you make an array of structs in C?

..... 59 likes ? I didn't see arrays of struct, I only see arrays of variable from struck... – user3402040 Mar 15 '17 at 23:10 ...
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Configuration System Failed to Initialize

... Delete old configuration files from c:\Users\username\AppData\Local\appname and c:\Users\username\AppData\Roaming\appname and then try to restart your application. share |...