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What's the difference between Perl's backticks, system, and exec?
...never returns at all.
There is also no point in returning STDOUT, STDERR or exit status of the command.
You can find documentation about it in perlfunc,
because it is a function.
system
executes a command and your Perl script is continued after the command has finished.
The return value i...
Difference between FOR and AFTER triggers?
What's the difference between FOR and AFTER triggers?
3 Answers
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Setting action for back button in navigation controller
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this is a slick, clean, nice and very well thought workaround
– boliva
Nov 25 '11 at 16:19
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Should we use Nexus or Artifactory for a Maven Repo?
We are using Maven for a large build process (> 100 modules). We have been storing our external dependencies in source control, and using that to update a local repo.
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Sass calculate percent minus px
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Sass cannot perform arithmetic on values that cannot be converted from one unit to the next. Sass has no way of knowing exactly how wide "100%" is in terms of pixels or any other unit. That's something only the browser knows.
You need to ...
How do I compile and run a program in Java on my Mac?
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Compiling and running a Java application on Mac OSX, or any major operating system, is very easy. Apple includes a fully-functional Java runtime and development environment out-of-the-box with OSX, so all you have to do is write a Java program and use the built-in tools to comp...
Margin-Top push outer div down
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put overflow:auto in the parent div
see more in this link
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What is the effect of extern “C” in C++?
...ation of your function. Your function definition is contained in a binary format (that was compiled by your C++ compiler) that the client C linker will then link to using the C name.
Since C++ has overloading of function names and C does not, the C++ compiler cannot just use the function name as a u...
CSS attribute selector does not work a href
I need to use attribute selector in css to change link on different color and image, but it does not work.
2 Answers
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Memory footprint of Haskell data types
How can I find the actual amount of memory required to store a value of some data type in Haskell (mostly with GHC)? Is it possible to evaluate it at runtime (e.g. in GHCi) or is it possible to estimate memory requirements of a compound data type from its components?
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