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bash: shortest way to get n-th column of output
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You can go one step further and define D to be:
alias -g D="|xargs rm"
Now you can type:
cat file X1 D
to delete all files mentioned in the first column of file "file".
If you know the bash, the zsh is not much of a change except for some new features.
HTH Chris
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Using SASS with ASP.NET [closed]
...started with a tutorial like this.
Prefer Bundling? Bundle Transformer now finally uses libsass, enabling high-speed compilation.
Here's why I think you should use Node and Gulp.
Node is popular now for Frontend Tooling Many web developers are now using Node a platform for frontend web deve...
Add a reference column migration in Rails 4
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Now, if you use the special generator syntax for migrations, Rails 4.2 will automatically create the correct migration with foreign key constraints included. rails g migration AddUserToUploads user:references produces add_ref...
How to put a UserControl into Visual Studio toolBox
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In VS2012 they have now added the hint 'The current solution must be re-opened for this to take effect' to the options dialog.
– Carlos P
Nov 28 '13 at 20:08
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Moving average or running mean
... each position in the window, are sometimes called the convolution kernel. Now, the arithmetic mean of N values is (x_1 + x_2 + ... + x_N) / N, so the corresponding kernel is (1/N, 1/N, ..., 1/N), and that's exactly what we get by using np.ones((N,))/N.
Edges
The mode argument of np.convolve speci...
Emacs in Windows
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I use EmacsW32, it works great. EDIT: I now use regular GNU Emacs 24, see below.
See its EmacsWiki page for details.
To me, the biggest advantage is that:
it has a version of emacsclient that starts the Emacs server if no server is running (open all your files ...
Make Vim show ALL white spaces as a character
...l, in combination with
:set listchars=...
display invisible characters.
Now, there isn't an explicit option which you can use to show whitespace, but in listchars, you could set a character to show for everything BUT whitespace. For example, mine looks like this
:set listchars=eol:$,tab:>-,tr...
Size-limited queue that holds last N elements in Java
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Thanks! Looks that's the most viable alternative for now :)
– GreyCat
Apr 18 '11 at 20:52
3
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Is it possible to make abstract classes in Python?
...class is already established as abstract shouldn't the compiler/interpret know that all the methods are from the abstract class in question?
– Charlie Parker
Mar 17 '14 at 3:30
35
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What is an example of the simplest possible Socket.io example?
... <script src="cdn.socket.io/socket.io-1.2.1.js"></script> and now it works
– Alexander Mills
Dec 31 '14 at 7:12
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