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Retrieve CPU usage and memory usage of a single process on Linux?

...usage of a single process on Linux - I know the PID. Hopefully, I can get it every second and write it to a CSV using the 'watch' command. What command can I use to get this info from the Linux command-line? ...
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Can I load a UIImage from a URL?

I have a URL for an image (got it from UIImagePickerController) but I no longer have the image in memory (the URL was saved from a previous run of the app). Can I reload the UIImage from the URL again? ...
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How to redirect output to a file and stdout

...andard error) into channel 1 (stdout/standard output), such that both is written as stdout. It is also directed to the given output file as of the tee command. Furthermore, if you want to append to the log file, use tee -a as: program [arguments...] 2>&1 | tee -a outfile ...
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How to sparsely checkout only one single file from a git repository?

How do I checkout just one file from a git repo? 21 Answers 21 ...
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ASP.NET MVC on IIS 7.5

I'm running Windows 7 Ultimate (64 bit) using Visual Studio 2010 RC. I recently decided to have VS run/debug my apps on IIS rather than the dev server that comes with it. ...
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Finding quaternion representing the rotation from one vector to another

...follow | edited Jul 11 '17 at 1:44 Community♦ 111 silver badge answered Jul 23 '09 at 1...
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Difference between a theta join, equijoin and natural join

I'm having trouble understanding relational algebra when it comes to theta joins, equijoins and natural joins. Could someone please help me better understand it? If I use the = sign on a theta join is it exactly the same as just using a natural join? ...
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Custom views with Storyboard

... UIView and the MyWidget class is the File Owner of the UIView. In the init of this widget I do a loadNibNamed . 3 Answe...
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Why does Math.floor return a double?

... double that is "equal to a mathematical integer", but then why shouldn't it return an int ? 6 Answers ...
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How to implement a secure REST API with node.js

I start planning a REST API with node.js ,express and mongodb. The API provides data for a website (public and private area) and maybe later a mobile app. The frontend will be developed with AngularJS. ...