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What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)

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How to solve error “Missing `secret_key_base` for 'production' environment” (Rails 4.1)

...ng Demi Magus's excellent instructions, I did something like this: cd /var/www/rails; rvm use ext-rbx-2.5.2@rails; SKB_FILE=/var/www/.secret_key_base; echo "export SECRET_KEY_BASE=$(RAILS_ENV=production rake secret)" > $SKB_FILE; . $SKB_FILE; echo ". $SKB_FILE" | tee -a ~/.bashrc ~/.bash_profile;...
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How do you convert a jQuery object into a string?

...with new String(obj). Update I wrote the original answer in 2009. As of 2014, most major browsers now support outerHTML as a native property (see, for example, Firefox and Internet Explorer), so you can do: $('#item-of-interest').prop('outerHTML'); ...
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How to correct TypeError: Unicode-objects must be encoded before hashing?

... | edited Sep 4 '13 at 2:01 asmeurer 72.5k2222 gold badges141141 silver badges212212 bronze badges answ...
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What is the purpose of Verifiable() in Moq?

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Pandas every nth row

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Convert varchar to uniqueidentifier in SQL Server

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Why does “,,,” == Array(4) in Javascript?

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How to check if field is null or empty in MySQL?

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Best practice for nested fragments in Android 4.0, 4.1 (

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