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Run cron job only if it isn't already running
... This wheel was already invented somewhere else :) E.g., serverfault.com/a/82863/108394
– Filipe Correia
Jun 8 '13 at 2:27
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Does Python have an ordered set?
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CasebashCasebash
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Getting the class name from a static method in Java
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– James Van Huis
Jun 1 '09 at 20:48
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True. Although MyClass.class will ensure this line doesn'...
How to get C# Enum description from value? [duplicate]
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answered Apr 16 '10 at 1:48
Nicholas PiaseckiNicholas Piasecki
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Bash: Strip trailing linebreak from output
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SteveSteve
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Ubuntu running `pip install` gives error 'The following required packages can not be built: * freety
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edited Jan 24 '17 at 18:59
Julien Marrec
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How to get a list of repositories apt-get is checking? [closed]
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edited Jun 18 '12 at 23:03
Ry-♦
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Maintain the aspect ratio of a div with CSS
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1388
Just create a wrapper <div> with a percentage value for padding-bottom, like this:
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Using LINQ to concatenate strings
... sergtk
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answered Oct 20 '08 at 8:53
Jorge FerreiraJorge Ferreira
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How to use XPath in Python?
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edited Feb 7 '16 at 18:16
Markus Safar
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