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How to check if a process id (PID) exists

...process is not owned by the running user, you may not have permissions to call kill -0. Better to use ps -p $PID > /dev/null 2>&1, which allows you to see process status, even if you do not have permissions to send a signal. – mckoss Apr 1 '12 at 16:...
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set date in input type date

...swered Nov 10 '12 at 14:30 int32_tint32_t 4,51511 gold badge1919 silver badges1616 bronze badges ...
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Reading a key from the Web.Config using ConfigurationManager

... edited Jul 11 '14 at 16:55 dav_i 24.3k1717 gold badges9292 silver badges127127 bronze badges answered Jan 4 '11 at 15:29 ...
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How to add a custom Ribbon tab using VBA?

...ry a few buttons. I chanced on some resources addressing it via Google but all look dodgy and outrageously complicated. 7 ...
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How to capture UIView to UIImage without loss of quality on retina display

...IGraphicsBeginImageContext uses a fixed scale factor of 1.0, so you're actually getting exactly the same image on an iPhone 4 as on the other iPhones. I'll bet either the iPhone 4 is applying a filter when you implicitly scale it up or just your brain is picking up on it being less sharp than everyt...
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What does the 'b' character do in front of a string literal?

... Actually, if you've imported unicode_literals from __future__, this will "reverse" the behavior for this particular string (in Python 2.x) – Romuald Brunet Mar 14 '13 at 16:27 ...
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How to check for valid email address? [duplicate]

...ere is no point. Even if you can verify that the email address is syntactically valid, you'll still need to check that it was not mistyped, and that it actually goes to the person you think it does. The only way to do that is to send them an email and have them click a link to verify. Therefore, a ...
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How to use SCNetworkReachability in Swift

... imported C structs have a default initializer in Swift, which initializes all of the struct's fields to zero, so the socket address structure can be initialized with var zeroAddress = sockaddr_in() sizeofValue() gives the size of this structure, this has to be converted to UInt8 for sin_len: zer...
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'Microsoft.SqlServer.Types' version 10 or higher could not be found on Azure

... I found the solution ! Just install the nuget package Microsoft.SqlServer.Types PM> Install-Package Microsoft.SqlServer.Types Link for more info share | ...
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Invalid postback or callback argument. Event validation is enabled using '

... One more option: implement IPostBackEventHandler and call js __doPostBack('<%= UniqueId.ToString() %>',arg) – gdbdable May 22 '14 at 7:11 ...