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bash: shortest way to get n-th column of output
Let's say that during your workday you repeatedly encounter the following form of columnized output from some command in bash (in my case from executing svn st in my Rails working directory):
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Why use strict and warnings?
...control warnings.
Use strict - declare variables scope. It is used to set some kind of
discipline in the script.If barewords are used in the code they are
interpreted.All the variables should be given scope ,like my,our or
local.
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How to implement a queue using two stacks?
Suppose we have two stacks and no other temporary variable.
20 Answers
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Combining node.js and Python
Node.js is a perfect match for our web project, but there are few computational tasks for which we would prefer Python. We also already have a Python code for them.
We are highly concerned about speed, what is the most elegant way how to call a Python "worker" from node.js in an asynchronous non-blo...
How I can I lazily read multiple JSON values from a file/stream in Python?
I'd like to read multiple JSON objects from a file/stream in Python, one at a time. Unfortunately json.load() just .read() s until end-of-file; there doesn't seem to be any way to use it to read a single object or to lazily iterate over the objects.
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PostgreSQL - how to quickly drop a user with existing privileges
I'm trying to make restricted DB users for the app I'm working on, and I want to drop the Postgres database user I'm using for experimenting. Is there any way to drop the user without having to revoke all his rights manually first, or revoke all the grants a user has?
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slf4j: how to log formatted message, object array, exception
What is the correct approach to log both a populated message and a stack trace of the exception?
2 Answers
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Replacement for Google Code Search? [closed]
Google Code Search has been incredibly valuable to me as a developer - I use it a couple times a week to see how other developers have used (usually poorly documented) APIs. It's also convenient to see the internals of some of those APIs, or to find which API corresponds to the functionality you wa...
Why does `True == False is False` evaluate to False? [duplicate]
I get some rather unexpected behavior on an expression that works with == but not with is :
4 Answers
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How to measure time taken by a function to execute
...ail is supposed to be built by world-class engineers from Google.......
(Set your system clock to one year ago and go to Gmail so we can all have a good laugh. Perhaps someday we will have a Hall of Shame for JS Date.)
Google Spreadsheet's now() function also suffers from this problem.
The only ...