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Test whether a glob has any matches in bash

...it'll get pre-expanded into matches. Exit status is: 1 for no-match, 0 for 'one or more matches' stdout is a list of files matching the glob. I think this is the best option in terms of conciseness and minimizing potential side effects. UPDATE: Example usage requested. if compgen -G "/tmp/...
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How to do parallel programming in Python?

...]) # evaluate "solve2(B)" asynchronously answer1 = result1.get(timeout=10) answer2 = result2.get(timeout=10) This will spawn processes that can do generic work for you. Since we did not pass processes, it will spawn one process for each CPU core on your machine. Each CPU core can execute one pr...
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Convert objective-c typedef to its string equivalent

...he classic C way is dangerous if your enum values are not continguous from 0). Something like this would work: - (NSString*)formatTypeToString:(FormatType)formatType { NSString *result = nil; switch(formatType) { case JSON: result = @"JSON"; break; c...
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How does the C code that prints from 1 to 1000 without loops or conditional statements work?

I've found C code that prints from 1 to 1000 without loops or conditionals : But I don't understand how it works. Can anyone go through the code and explain each line? ...
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Why are arrays of references illegal?

... answered Jul 22 '09 at 10:19 Kirill V. LyadvinskyKirill V. Lyadvinsky 87.3k2222 gold badges125125 silver badges208208 bronze badges ...
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Why does only the first line of this Windows batch file execute but all three lines execute in a com

... 306 Maven uses batch files to do its business. With any batch script, you must call another script...
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method overloading vs optional parameter in C# 4.0 [duplicate]

...e for 'Optional parameters' in conjunction with 'Named Parameters' in C# 4.0 is that it presents us with an elegant alternative to method overloading where you overload method based on the number of parameters. For example say you want a method foo to be be called/used like so, foo(), foo(1), foo(1...
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css3 drop shadow under another div, z-index not working [duplicate]

... TylerH 18.1k1212 gold badges6161 silver badges8080 bronze badges answered Jul 15 '10 at 19:10 gearsdigitalgearsdigital 12k66 ...
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Installing Apple's Network Link Conditioner Tool

...visKurt Revis 26.3k44 gold badges6262 silver badges7070 bronze badges 35 ...
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How do I get java logging output to appear on a single line?

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