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What does `kill -0 $pid` in a shell script do?
...istence of a process.
Do various error checking on the process (PID, PGID, etc ...).
It will not send any output to stdout upon success.
Send an error message to stderr if something is not right.
Give you a false positive if the process is defunct (i.e. Zombie).
More explicitly, a useful function ...
How to save all the variables in the current python session?
...g all the variables in *.spydata format
Loading all the variables or pics etc.
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What is the fastest way to send 100,000 HTTP requests in Python?
...and I found this to work the best for me using python3.6.
I was able to fetch about ~150 unique domains per second running on AWS.
import pandas as pd
import concurrent.futures
import requests
import time
out = []
CONNECTIONS = 100
TIMEOUT = 5
tlds = open('../data/sample_1k.txt').read().splitli...
how to generate migration to make references polymorphic
...ter of polymorphic, like: t.referencesp :imagable, treferenceso :imagable, etc.
– OzBarry
Apr 7 '15 at 18:09
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Should the .gradle folder be added to version control?
...radle folder will contain generic information such as dependency mappings, etc and uploaded it on version control. I then tried setting up a new machine with a different OS flavor and Java version using code from the version control including the .gradle folder and ran into errors. Turned out that t...
What is the purpose of class methods?
...vel function that operates on MyClass (factory, dependency injection stub, etc), make it a classmethod. Then it'll be available to subclasses.
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What is difference between width, innerWidth and outerWidth, height, innerHeight and outerHeight in
... and in addition to this it also includes things like toolbars, scrollbars etc... and these values will be always equal or greater than innerWidth/innerHeight values.
Hope it helps more...
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Why is $$ returning the same id as the parent process?
... inherited from a parent shell (which inherited its value from its parent, etc). The top level shell sets it initially, rather than inheriting from its (non-shell) parent process.
– chepner
Jul 20 '17 at 11:38
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Reflecting parameter name: abuse of C# lambda expressions or syntax brilliance?
...e calls to an Attribute("style", "display:none").Attribute("class", "foo") etc)
If C# had a less verbose syntax for dictionary literals, then I wouldn't have bothered including this syntax in the grid component :)
I also want to point out that the use of this in MvcContrib is completely optional -...
List vs tuple, when to use each? [duplicate]
...after assignment) and a list is mutable (you can append, change, subtract, etc).
So, I tend to make my tuples things that shouldn't change after assignment and my lists things that can.
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