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Sublime Text 2: Trim trailing white space on demand

...o automatically delete trailing spaces upon file save. Depending on your settings, it may be more handy to just highlight them and/or delete them by hand. This plugin provides just that! Usage: click "Edit / Trailing Spaces / Delete". To add a key binding, open "Preferences / Key Bindings -...
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How to loop through files matching wildcard in batch file

I have a set of base filenames, for each name 'f' there are exactly two files, 'f.in' and 'f.out'. I want to write a batch file (in Windows XP) which goes through all the filenames, for each one it should: ...
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Use RSA private key to generate public key?

...a public - private key pair. The pair is stored in the generated mykey.pem file. openssl rsa -in mykey.pem -pubout > mykey.pub will extract the public key and print that out. Here is a link to a page that describes this better. EDIT: Check the examples section here. To just output the public...
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Add file extension to files with bash

What is the good way to add file extension ".jpg" to extension-less files with bash? 10 Answers ...
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How to round a number to significant figures in Python

I need to round a float to be displayed in a UI. E.g, to one significant figure: 20 Answers ...
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How to do a newline in output

... editor after snippets, if snippets enabled if (StackExchange.settings.snippets.snippetsEnabled) { StackExchange.using("snippets", function() { createEditor(); }); } else { createEditor(); ...
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Save classifier to disk in scikit-learn

...in scikit-learn: >>> import joblib >>> from sklearn.datasets import load_digits >>> from sklearn.linear_model import SGDClassifier >>> digits = load_digits() >>> clf = SGDClassifier().fit(digits.data, digits.target) >>> clf.score(digits.data, d...
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Applying a function to every row of a table using dplyr?

When working with plyr I often found it useful to use adply for scalar functions that I have to apply to each and every row. ...
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Get Android .apk file VersionName or VersionCode WITHOUT installing apk

How can I get programmatically get the version code or version name of my apk from the AndroidManifest.xml file after downloading it and without installing it. ...
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How to overload functions in javascript?

...t overloading in Javascript: Variable arguments - You can pass different sets of arguments (in both type and quantity) and the function will behave in a way that matches the arguments passed to it. Default arguments - You can define a default value for an argument if it is not passed. Named argume...