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How to check whether a file is empty or not?
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361
>>> import os
>>> os.stat("file").st_size == 0
True
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What is the difference between ${var}, “$var”, and “${var}” in the Bash shell?
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237
Braces ($var vs. ${var})
In most cases, $var and ${var} are the same:
var=foo
echo $var
# foo...
How to do a logical OR operation in shell scripting
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answered Nov 6 '10 at 2:03
Coding DistrictCoding District
11.5k22 gold badges2323 silver badges3030 bronze badges
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How to check if running as root in a bash script
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430
The $EUID environment variable holds the current user's UID. Root's UID is 0. Use something lik...
What is the benefit of using “SET XACT_ABORT ON” in a stored procedure?
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234
SET XACT_ABORT ON instructs SQL Server to rollback the entire transaction and abort the batch w...
How could I use requests in asyncio?
..._complete(main())
This will get both responses in parallel.
With python 3.5 you can use the new await/async syntax:
import asyncio
import requests
async def main():
loop = asyncio.get_event_loop()
future1 = loop.run_in_executor(None, requests.get, 'http://www.google.com')
future2 = ...
Is it possible to solve the “A generic array of T is created for a varargs parameter” compiler warni
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answered Sep 18 '09 at 15:30
KevinKevin
28.8k99 gold badges7171 silver badges7878 bronze badges
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MAC addresses in JavaScript
... Grey PantherGrey Panther
11.8k66 gold badges3939 silver badges6262 bronze badges
1
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Editing legend (text) labels in ggplot
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153
The tutorial @Henrik mentioned is an excellent resource for learning how to create plots with th...
Access to private inherited fields via reflection in Java
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131
This should demonstrate how to solve it:
import java.lang.reflect.Field;
class Super {
pr...