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How to escape a single quote inside awk
... @Steve: Thanks a lot for your very useful answer. You saved me a lot of headaches!
– John Slegers
Jun 11 '14 at 8:12
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How do I find and view a TFS changeset by comment text?
With TFS I need to find a changeset by comment, and/or by developer. Maybe I'm just blind today, but I don't see a simple way in the Source Control Explorer to do this task?
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Shortcut to exit scale mode in VirtualBox [closed]
...he ctrl button at your keyboard, not right click + ctrl + c (like what I lamely did).
– Jürgen Paul
Feb 28 '13 at 10:39
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Net::SMTPAuthenticationError when sending email from Rails app (on staging environment)
I am sending email from my Rails application. It works well on development environment, but fails on staging. I get the following error:
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YAML current date in rmarkdown
...s a trick to put the current date in the YAML front-matter of a .rmd document to be processed by knitr and the rmarkdown package. I used to have the following line at the top of my wiki pages,
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How to change an application icon programmatically in Android?
...s it possible to change an application icon directly from the program?
I mean, change icon.png in the res\drawable folder.
I would like to let users to change application's icon from the program so next time they would see the previously selected icon in the launcher.
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How can I send an email by Java application using GMail, Yahoo, or Hotmail?
...ax.mail.internet.*;
public class Main {
private static String USER_NAME = "*****"; // GMail user name (just the part before "@gmail.com")
private static String PASSWORD = "********"; // GMail password
private static String RECIPIENT = "lizard.bill@myschool.edu";
public static voi...
Hiding axis text in matplotlib plots
...her of the axes (I use axes in the traditional sense, not the matplotlib nomenclature!). An issue I have come across is where matplotlib adjusts the x(y)ticklabels by subtracting a value N, then adds N at the end of the axis.
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Step-by-step debugging with IPython
... you're automatically dropped to ipdb. While you don't have the stepping immediately, you're in ipdb afterwards.
This makes debugging individual functions easy, as you can just load a file with %load and then run a function. You could force an error with an assert at the right position.
%pdb is a ...
How to sum array of numbers in Ruby?
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Try this:
array.inject(0){|sum,x| sum + x }
See Ruby's Enumerable Documentation
(note: the 0 base case is needed so that 0 will be returned on an empty array instead of nil)
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