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What is a .pid file and what does it contain?
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How to tell which version of a gem a rails app is using
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In Rails 3 and Rails 4, use bundle show
In Rails 2, rake gems will print out what gems, depende...
How to run cron once, daily at 10pm
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It's running every minute of the hour 22 I guess. Try the following to run it every first minu...
How to initialize const member variable in a class?
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edited Jun 12 '17 at 16:30
Rakete1111
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OSError: [Errno 2] No such file or directory while using python subprocess in Django
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How to define servlet filter order of execution using annotations in WAR
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How to check status of PostgreSQL server Mac OS X
...ok for a command that looks something like this (your version may not be 8.3):
/Library/PostgreSQL/8.3/bin/postgres -D /Library/PostgreSQL/8.3/data
To start the server, execute something like this:
/Library/PostgreSQL/8.3/bin/pg_ctl start -D /Library/PostgreSQL/8.3/data -l postgres.log
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Python: print a generator expression?
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Quick answer:
Doing list() around a generator expression is (almost) exactly equivalent to havi...
What does numpy.random.seed(0) do?
..., 0.65, 0.44, 0.89])
>>> numpy.random.rand(4)
array([ 0.96, 0.38, 0.79, 0.53])
(pseudo-)random numbers work by starting with a number (the seed), multiplying it by a large number, adding an offset, then taking modulo of that sum. The resulting number is then used as the seed to gen...
Specifying Maven's local repository location as a CLI parameter
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