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Test whether string is a valid integer

I'm trying to do something common enough: Parse user input in a shell script. If the user provided a valid integer, the script does one thing, and if not valid, it does something else. Trouble is, I haven't found an easy (and reasonably elegant) way of doing this - I don't want to have to pick it ap...
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Is there a Max function in SQL Server that takes two values like Math.Max in .NET?

I want to write a query like this: 29 Answers 29 ...
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Find and restore a deleted file in a Git repository

Say I'm in a Git repository. I delete a file and commit that change. I continue working and make some more commits. Then, I find I need to restore that file. ...
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HTML in string resource?

I know I can put escaped HTML tags in string resources. However, looking at the source code for the Contacts application I can see that they have a way of not having to encode the HTML. Quote from the Contacts application strings.xml : ...
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TortoiseGit not showing icon overlays

I have been using TortoiseGit for almost a full year now. It has been working very well for me until yesterday, when I encountered a problem. I was deleting a folder when Windows Explorer sort of crashed on me (it hung on "discovering items") for over an hour, then I restarted the system. ...
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RESTful Services - WSDL Equivalent

I have been reading about REST and SOAP, and understand why implementing REST can be beneficial over using a SOAP protocol. However, I still don't understand why there isn't the "WSDL" equivalent in the REST world. I have seen posts saying there is "no need" for the WSDL or that it would be redund...
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Android: How to turn screen on and off programmatically?

Before marking this post as a "duplicate", I am writing this post because no other post holds the solution to the problem. ...
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How can I use “puts” to the console without a line break in ruby on rails?

I have a method which goes through a loop -- I want it to output a "." each loop so I can see it in the console. however, it puts a linebreak at the end of each when I use puts "." . ...
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Fast check for NaN in NumPy

I'm looking for the fastest way to check for the occurrence of NaN ( np.nan ) in a NumPy array X . np.isnan(X) is out of the question, since it builds a boolean array of shape X.shape , which is potentially gigantic. ...
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Where are static methods and static variables stored in Java?

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