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More elegant “ps aux | grep -v grep”
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Correct me if I am wrong, but this also should work on any position of the grepped character: ps aux| grep "te[r]minal"
– meso_2600
Mar 23 '16 at 9:54
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How to get parameters from the URL with JSP
...ut:
Hello <b><%= request.getParameter("name") %></b>!
If the page was accessed with the URL:
http://hostname.com/mywebapp/mypage.jsp?name=John+Smith
the resulting output would be:
Hello <b>John Smith</b>!
If name is not specified on the query string, the output...
JavaScript variable number of arguments to function
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This is also nice because if you want, you can build the context argument with code and pass it around before it gets used.
– Nate C-K
Jan 29 '14 at 8:17
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Where is debug.keystore in Android Studio
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Which Studio are you using? If it is Studio 0.3.2 or above, then I am with you on this one!
– Prachi
Jan 16 '14 at 14:19
7
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string.Join on a List or other type
...does what you want:
String.Join<T>(String, IEnumerable<T>)
If you can't upgrade, you can achieve the same effect using Select and ToArray.
return string.Join(",", a.Select(x => x.ToString()).ToArray());
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Is there any way to git checkout previous branch?
I sort of want the equivalent of cd - for git. If I am in branch master and I checkout foo , I would love to be able to type something like git checkout - to go back to master , and be able to type it again to return to foo .
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Simple way to create matrix of random numbers
...n array of the given shape and propagate it with random
samples from a uniform distribution over [0, 1).
>>> import numpy as np
>>> np.random.rand(2,3)
array([[ 0.22568268, 0.0053246 , 0.41282024],
[ 0.68824936, 0.68086462, 0.6854153 ]])
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How can I determine if a variable is 'undefined' or 'null'?
How do I determine if variable is undefined or null ?
30 Answers
30
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How do I extract the contents of an rpm?
...he cpio arguments are
-i = extract
-d = make directories
-m = preserve modification time
-v = verbose
I found the answer over here: lontar's answer
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How to draw a custom UIView that is just a circle - iPhone app
...easiest way of making a circle, but is not necessarily the most efficient. If performance is vital, drawRect will probably yield better results.
– Benjamin Mayo
Jul 5 '11 at 22:28
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