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Difference between single and double square brackets in Bash

...ix shell compliant condition tests. Double [[]] are an extension to the standard [] and are supported by bash and other shells (e.g. zsh, ksh). They support extra operations (as well as the standard posix operations). For example: || instead of -o and regex matching with =~. A fuller list of differ...
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How do I start Mongo DB from Windows?

...eated the path data/db too but when I tried to start mongodb using the command 'C:\mongodb\bin\mongod.exe' , it is not starting. It is showing admin web console waiting for connections on port 28017 . ...
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How to shuffle a std::vector?

...but I think it's not very efficient because it needs an intermediate array and it needs to know the item type (DeckCard in this example): ...
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Bundle ID Suffix? What is it?

...ple asks for the Bundle ID Suffix. What is this? Not sure what to put here and what the significance of it is. 2 Answers ...
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Angular - ui-router get previous state

... Here 'to' and 'from' means 'toState' and 'fromState'. Consider your previous url is localhost:xxxx/employee and controller is 'EmployeesController' then the example for 'fromState' is : Object {url: "/employees", templateUrl: "/employe...
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Express.js - app.listen vs server.listen

... get it. What is the difference between creating an app using Express.js and starting the app listening on port 1234, for example: ...
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What is the difference between libsqlite3.dylib and libsqlite3.0.dylib?

... Thanks Jeff - I wasn't sure and didn't want to assume either way. – earnshavian Dec 2 '10 at 5:11 5 ...
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How to parse a CSV file using PHP [duplicate]

... CSV file http://php.net/manual/en/function.fgetcsv.php $row = 1; if (($handle = fopen("test.csv", "r")) !== FALSE) { while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) { $num = count($data); echo "<p> $num fields in line $row: <br /></p>\n"; $row++; for ($...
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Python integer incrementing with ++ [duplicate]

I've always laughed to myself when I've looked back at my VB6 days and thought, "What modern language doesn't allow incrementing with double plus signs?": ...
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How do you downgrade rubygems?

...ve rubygems 1.3.1 installed but I want to go back to 1.2.0. What's the command to downgrade rubygems? 6 Answers ...