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Match two strings in one line with grep

... To search for files containing all the words in any order anywhere: grep -ril \'action\' | xargs grep -il \'model\' | xargs grep -il \'view_type\' The first grep kicks off a recursive search (r), ignoring case (i) and listing (printing out) the name of the files that are ma...
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Display clearColor UIViewController over UIViewController

... In order to work this for me I added modalViewController.view.backgroundColor = UIColor.clearColor() thanks for the solution – Pramod May 4 '15 at 12:03 ...
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How to set an “Accept:” header on Spring RestTemplate request?

...te#postForObject Javadoc. The request parameter can be a HttpEntity in order to add additional HTTP headers to the request. share | improve this answer | follow ...
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How do I compare two hashes?

...g the output of .to_a will fail when equal hashes have keys in a different order: {a:1, b:2} == {b:2, a:1} => true, {a:1, b:2}.to_a == {b:2, a:1}.to_a => false – aidan Jan 27 '17 at 5:53 ...
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Objective-C formatting string for boolean?

...{ if (theBool == 0) return @"NO"; // can change to No, NOOOOO, etc else return @"YES"; // can change to YEAH, Yes, YESSSSS etc } share | improve this answer | ...
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unix domain socket VS named pipes?

...ence is that named pipes are one-way, so you'll need to use two of them in order to do two-way communication. Sockets of course are two way. It seems slightly more complicated to use two variables instead of one (that is, two pipes instead of one socket). Also, the wikipedia article is pretty clear...
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'UserControl' constructor with parameters in C#

...s Designer forces you to provide a parameterless constuctor on controls in order to work properly. Actually, it only requires a parameterless constructor in order to instantiate controls, but not to design them (the designer will actually parse the InitializeComponent method while designing a contro...
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Do I need elements in persistence.xml?

...e Java EE 5 tutorial: <persistence> <persistence-unit name="OrderManagement"> <description>This unit manages orders and customers. It does not rely on any vendor-specific features and can therefore be deployed to any persistence provider. ...
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Is it safe to delete an object property while iterating over them?

...s code is legal and will work as expected. Browser quirks affect iteration order and delete statements in general, but not whether the OPs code will work. It's generally best only to delete the current property in the iteration - deleting other properties in the object will unpredictably cause them ...
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Error: The processing instruction target matching “[xX][mM][lL]” is not allowed

...ts before the <?xml ?> declaration. Most commonly this is a Byte Order Mark (BOM). Resolution: Remove the BOM using techniques such as those suggested by the W3C page on the BOM in HTML. A stray <?xml ?> declaration exists within the XML content. This can happen when XML files a...