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Run cron job only if it isn't already running

... | edited Jul 21 '14 at 0:00 answered Sep 17 '11 at 8:04 ...
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Placeholder in IE9

... great! – smets.kevin Nov 18 '13 at 14:41 1 Thanks, neat plugin, however one problem I have is wi...
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Why are Python's 'private' methods not actually private?

... AlyaAlya 6,04611 gold badge1414 silver badges33 bronze badges 12 ...
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git pull fails “unable to resolve reference” “unable to update local ref”

... | edited Apr 22 '14 at 17:06 hexacyanide 71k2727 gold badges141141 silver badges143143 bronze badges ...
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When should I use C++14 automatic return type deduction?

... have a compiler that supports automatic return type deduction, part of C++14. With -std=c++1y , I can do this: 7 Answers...
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(Built-in) way in JavaScript to check if a string is a valid number

...-typeof/5 – Kevin Jurkowski Jan 22 '14 at 0:59 24 ** Warning ** This answer is wrong. Use at you...
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How do I execute a program from Python? os.system fails due to spaces in path

...the child. – Brian Oct 15 '08 at 11:14 1 The windows method for this is the os.spawn family, whic...
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Reusable library to get human readable version of file size?

... Wai Ha Lee 7,3991414 gold badges5050 silver badges7474 bronze badges answered Jul 7 '09 at 21:15 Sridhar RatnakumarSr...
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How to “set a breakpoint in malloc_error_break to debug”

...ually overwritten). – Robert Aug 9 '14 at 17:10 1 I'm not getting a plus button in the lower-left...
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How can I pad an integer with zeros on the left?

... Sled 15.7k2121 gold badges107107 silver badges143143 bronze badges answered Jan 23 '09 at 15:26 Yoni RoitYoni Roit 25.6k77 g...