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Pythonic way to print list items
... from __future__ import print_function, as noted by mgilson in comments.
With the print statement on Python 2.x you will need iteration of some kind, regarding your question about print(p) for p in myList not working, you can just use the following which does the same thing and is still one line:
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Including Google Web Fonts link or import?
...d process which "flattens" the @import's, then you create another problem with web fonts: dynamic providers like Google WebFonts serve platform-specific versions of the fonts, so if you simply inline the content, then you'll end up with broken fonts on some platforms.
Now, why would you use the web...
How to mock an import
Module A includes import B at its top. However under test conditions I'd like to mock B in A (mock A.B ) and completely refrain from importing B .
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Rails: where does the infamous “current_user” come from?
...t_user . Does this only come from Devise? and do I have to manually define it myself even if I use Devise? Are there prerequisites to using current_user (like the existence of sessions, users, etc)?
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Counting the occurrences / frequency of array elements
In Javascript, I'm trying to take an initial array of number values and count the elements inside it. Ideally, the result would be two new arrays, the first specifying each unique element, and the second containing the number of times each element occurs. However, I'm open to suggestions on the form...
How to install a specific JDK on Mac OS X?
...un.com/javase/downloads/index.jsp .
I looked for a Mac version, but I'm a bit surprised to only see downloadable versions for Linux, Windows and Solaris ...
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Add a dependency in Maven
How do I take a jar file that I have and add it to the dependency system in maven 2? I will be the maintainer of this dependency and my code needs this jar in the class path so that it will compile.
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MySQL 'create schema' and 'create database' - Is there any difference
...e documentation of MySQL says :
CREATE DATABASE creates a database
with the given name. To use this
statement, you need the CREATE
privilege for the database. CREATE
SCHEMA is a synonym for CREATE
DATABASE as of MySQL 5.0.2.
So, it would seem normal that those two instruction do the...
What are all the different ways to create an object in Java?
Had a conversation with a coworker the other day about this.
22 Answers
22
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Bash command to sum a column of numbers [duplicate]
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paste -sd+ infile | bc
Using stdin:
<cmd> | paste -sd+ | bc
Edit:
With some paste implementations you need to be more explicit when reading from stdin:
<cmd> | paste -sd+ - | bc
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