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How to check if running in Cygwin, Mac or Linux?
...ronment you're running in:
pax> uname -a
CYGWIN_NT-5.1 IBM-L3F3936 1.5.25(0.156/4/2) 2008-06-12 19:34 i686 Cygwin
pax> uname -s
CYGWIN_NT-5.1
And, according to the very helpful schot (in the comments), uname -s gives Darwin for OSX and Linux for Linux, while my Cygwin gives CYGWIN_NT-5.1. ...
What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
... the following method definitions, what does the * and ** do for param2 ?
22 Answers
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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, dependencies, and versions are installed, frozen, etc.
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How to scale down a range of numbers with a known min and max value
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528
Let's say you want to scale a range [min,max] to [a,b]. You're looking for a (continuous) func...
Git file permissions on Windows
...n of how to change permissions (also) on Windows here: http://blog.lesc.se/2011/11/how-to-change-file-premissions-in-git.html
For example following command adds user execute permission to an arbitrary file:
git update-index --chmod=+x <file>
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Eclipse Kepler for OS X Mavericks request Java SE 6
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207
This is in part due to Oracle's missing definitions of the JRE8 VM capabilities.
In case you ...
Iterating over a numpy array
...think you're looking for the ndenumerate.
>>> a =numpy.array([[1,2],[3,4],[5,6]])
>>> for (x,y), value in numpy.ndenumerate(a):
... print x,y
...
0 0
0 1
1 0
1 1
2 0
2 1
Regarding the performance. It is a bit slower than a list comprehension.
X = np.zeros((100, 100, 100))
%...
PHP function to generate v4 UUID
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288
Taken from this comment on the PHP manual, you could use this:
function gen_uuid() {
retu...
Specifying column name in a “references” migration
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edited Dec 4 '12 at 1:35
Tom Harrison
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