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Why is sed not recognizing \t as a tab?
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Not all versions of sed understand \t. Just insert a literal tab instead (press Ctrl-V then Tab).
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Git submodule inside of a submodule (nested submodules)
Is it possible for a git submodule to be made of several other git submodules, and the super git repo to fetch the contents for each submodule?
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Ruby on Rails Callback, what is difference between :before_save and :before_create?
Could you explain in detail what the :before_save and :before_create Ruby on Rails callbacks are, and what they have to do with Rails validations? Does validation occur after :before_save or :before_create ?
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How to get a index value from foreach loop in jstl
I have a value set in the request object like the following,
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Favorite way to create an new IEnumerable sequence from a single value?
I usually create a sequence from a single value using array syntax, like this:
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sed edit file in place
... out if it is possible to edit a file in a single sed command without manually streaming the edited content into a new file and then renaming the new file to the original file name. I tried the -i option but my Solaris system said that -i is an illegal option. Is there a different way?
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C# - Multiple generic types in one list
This is probably not possible, but I have this class:
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C++ const map element access
I tried to use the operator[] access the element in a const C++ map, but this method failed. I also tried to use "at()" to do the same thing. It worked this time. However, I could not find any reference about using "at()" to access element in a const C++ map. Is "at()" a newly added function in C++ ...
Can I make a pull request on a gist on GitHub?
Can I make a pull request on some else's gist on GitHub?
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How do I install imagemagick with homebrew?
I'm trying to install Imagemagick on OSX Lion but something is not working as expected.
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