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Does MySQL foreign_key_checks affect the entire database?
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249
It is session-based, when set the way you did in your question.
https://dev.mysql.com/doc/ref...
How to use mod operator in bash?
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241
Try the following:
for i in {1..600}; do echo wget http://example.com/search/link$(($i % 5))...
Citing the author of a blockquote using Markdown syntax
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edited Sep 4 '15 at 12:35
answered Jan 4 '10 at 20:51
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Get Folder Size from Windows Command Line
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123
You can just add up sizes recursively (the following is a batch file):
@echo off
set size=0
for...
Way to read first few lines for pandas dataframe
...kes a long time to read, and occasionally only want to use the first, say, 20 lines to get a sample of it (and prefer not to load the full thing and take the head of it).
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How to switch a user per task or set of tasks?
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244
With Ansible 1.9 or later
Ansible uses the become, become_user, and become_method directives ...
What is the meaning of polyfills in HTML5?
...port CSS3 techniques you want).
Here's a good post:
http://remysharp.com/2010/10/08/what-is-a-polyfill/
Here's a comprehensive list of Polyfills and Shims:
https://github.com/Modernizr/Modernizr/wiki/HTML5-Cross-browser-Polyfills
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Is R's apply family more than syntactic sugar?
...ntly different performance:
> fibo <- function(n) {
+ if ( n < 2 ) n
+ else fibo(n-1) + fibo(n-2)
+ }
> system.time(for(i in 0:26) fibo(i))
user system elapsed
7.48 0.00 7.52
> system.time(sapply(0:26, fibo))
user system elapsed
7.50 0.00 7.54
> s...
Output array to CSV in Ruby
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answered Jan 27 '11 at 22:04
Dylan MarkowDylan Markow
115k2323 gold badges272272 silver badges195195 bronze badges
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Format string, integer with leading zeros
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