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How to check if a symlink exists

... do you really see a difference between -L and -h ? in my bash ( version 4.2.53(1)-release (x86_64-redhat-linux-gnu ) man bash is identical for both -L and -h and they behave the same, ie they check that file actualy is a link and don'...
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Mockito - difference between doReturn() and when()

...rn() has the big disadvantage of turning into YODA style coding of method calls. The thing later comes written down first that is. Most people read left to right; so you now have to constantly remember to reverse the return-when logic in your head. – GhostCat F...
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std::wstring VS std::string

... on a wchar_t. char vs. wchar_t char is supposed to hold a character, usually an 8-bit character. wchar_t is supposed to hold a wide character, and then, things get tricky: On Linux, a wchar_t is 4 bytes, while on Windows, it's 2 bytes. What about Unicode, then? The problem is that neither char ...
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install / uninstall APKs programmatically (PackageManager vs Intents)

My application installs other applications, and it needs to keep track of what applications it has installed. Of course, this could be achieved by simply keeping a list of installed applications. But this should not be necessary! It should be the responsibility of the PackageManager to maintain the ...
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How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?

... am currently making an app that will have multiple timers, which are basically all the same. 4 Answers ...
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Using HeapDumpOnOutOfMemoryError parameter for heap dump for JBoss

...mentation has to say: By default the heap dump is created in a file called java_pid.hprof in the working directory of the VM, as in the example above. You can specify an alternative file name or directory with the -XX:HeapDumpPath= option. For example -XX:HeapDumpPath=/disk2/dumps ...
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Octave-Gnuplot-AquaTerm error: set terminal aqua enhanced title “Figure 1”…unknown terminal type"

I've installed Octave and gnuplot via Homebrew, and downloaded AquaTerm.dmg. When I try to plot, I get the following message: ...
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What is the difference between Ruby 1.8 and Ruby 1.9

... Sam's slides. The slideshow is less overwhelming to review, but having it all laid out in a list like this is also helpful. Ruby 1.9 - Major Features Performance Threads/Fibers Encoding/Unicode gems is (mostly) built-in now if statements do not introduce scope in Ruby. What's changed? Single ...
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How do I set the default font size in Vim?

...ault settings for my GUI with Vim. I already made research on the web, but all the solutions I found and tried did not work. ...
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What is the !! (not not) operator in JavaScript?

... Partial Obscurity: val.enabled = (userId != 0) ? true : false; // And finally, much easier to understand: val.enabled = (userId != 0); share | improve this answer | follow...