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Grep characters before and after match?

... 3 characters before and 4 characters after $> echo "some123_string_and_another" | grep -o -P '.{0,3}string.{0,4}' 23_string_and share | improve this answer | ...
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Handling click events on a drawable within an EditText

...ANCEL); return false; } And here's bare-bone listener implementation based on @Mark's answer public abstract class RightDrawableOnTouchListener implements OnTouchListener { Drawable drawable; private int fuzz = 10; /** * @param keyword */ public RightDrawableOnTouch...
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Find unique rows in numpy.array

...f unique values in any N-dim array. To get unique rows, one can do: unique_rows = np.unique(original_array, axis=0) share | improve this answer | follow | ...
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multiple prints on the same line in Python

... can use the print statement to do this without importing sys. def install_xxx(): print "Installing XXX... ", install_xxx() print "[DONE]" The comma on the end of the print line prevents print from issuing a new line (you should note that there will be an extra space at the end of the ou...
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Devise form within a different controller

... "resource" you describe from one of my controllers, because my controller base class was missing the following (Rails-API ActionController::API was at fault): include ActionController::Helpers Thus the helper methods from Devise could not be resolved in the view. To make Devise work with Rails-...
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Xamarin 2.0 vs Appcelerator Titanium vs PhoneGap [duplicate]

...evin Whinnery blog. PhoneGap The purpose of PhoneGap is to allow HTML-based web applications to be deployed and installed as native applications. PhoneGap web applications are wrapped in a native application shell, and can be installed via the native app stores for multiple platforms. A...
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How to randomize (or permute) a dataframe rowwise and columnwise?

...is in matrix form convert into data.frame use the sample function from the base package indexes = sample(1:nrow(df1), size=1*nrow(df1)) Random Samples and Permutations
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How can I see the raw SQL queries Django is running?

...he specified, builtin Pythonian str() function, which invokes the internal __str__() method. e.g. str(MyModel.objects.filter(name="my name").query) I would also recommend using IPython and the Django shell of your project. Tab completion then provides object introspection. As Django is known for it...
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Logstash实践: 分布式系统的日志监控 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...JDK压缩包。 一般解压到/user/local/下,形成/usr/local/jdk1.7.0_79/bin这种目录结构。 配置JAVA_HOME环境变量:echo 'export JAVA_HOME=/usr/local/jdk1.7.0_79' >> ~/.bashrc。 3.2 安装Logstash 去官网下载Logstash的压缩包。 一般也解压到/usr/local/下,形成...
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Remove specific commit

...in the edits to those files, it seems to be a toss up between revert and rebase, and there are no straightforward examples, and the docs assume I know more than I do. ...