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How to kill all processes matching a name?
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From man 1 pkill
-f The pattern is normally only matched against the process name.
When -f is set, the full command line is used.
Which means, for example, if we see these lines in ps aux:
apache 24268 0.0 ...
Changing the image source using jQuery
...with how many images there are. This will keep the resultant index cycling from 0 to length-1, which are the indices of the $images object. This means this code will work with 2, 3, 5, 10, or 100 images... cycling through each image in order and restarting at the first image when the last image is r...
Calling C/C++ from Python?
...u should have a look at Boost.Python. Here is the short introduction taken from their website:
The Boost Python Library is a framework for interfacing Python and
C++. It allows you to quickly and seamlessly expose C++ classes
functions and objects to Python, and vice-versa, using no special
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Python: Ignore 'Incorrect padding' error when base64 decoding
... (the '=' characters at the end of base64 encoded data) is "lossless":
From a theoretical point of view, the padding character is not needed,
since the number of missing bytes can be calculated from the number
of Base64 digits.
So if this is really the only thing "wrong" with your base64 d...
Get time difference between two dates in seconds
...r between 1 and 31 (not zero based) as opposed to the epoch time you'd get from calling the getTime() method, representing the number of milliseconds since January 1st 1970, 00:00
Rant
Depending on what your date related operations are, you might want to invest in integrating a library such as date...
Save plot to image file instead of displaying it using Matplotlib
...-and-dirty script to generate plots on the fly. I am using the code below (from Matplotlib documentation) as a starting point:
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iOS application: how to clear notifications?
...otifications];
which never fails to clear all of the app's notifications from Notification Center.
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Programmatically saving image to Django ImageField
...s an image off the web and stores it in a model. The important bits are:
from django.core.files import File # you need this somewhere
import urllib
# The following actually resides in a method of my model
result = urllib.urlretrieve(image_url) # image_url is a URL to an image
# self.photo is ...
How to send emails from my Android application?
...am developing an application in Android. I don't know how to send an email from the application?
21 Answers
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What is your favorite C programming trick? [closed]
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Where did he get 0x5f3759df from in the first place?
– RSH1
Oct 14 '11 at 16:23
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