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How to set an environment variable only for the duration of the script?
On Linux (Ubuntu 11.04) in bash, is it possible to temporarily set an environment variable that will only be different from the normal variable for the duration of the script? For example, in a shell script, making an app that saves to HOME portable by temporarily setting HOME to a folder in the pre...
Can't delete virtual device from Eclipse, android
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In Linux/*nix and OSX:
Find the .android folder in your $HOME directory.
In .android there should be a avd folder
In the avd folder should be one or multiple .ini file and a corresponding *.avd virtual device folder.
Delete bo...
How can I open a Shell inside a Vim Window?
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One thing to look out for: The +python or +python3 requirement for vi can be a killer in some work environments.
– cfi
Oct 29 '15 at 7:26
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Read file from line 2 or skip header row
... What about using consume() from more-itertools as stated in docs.python.org/3/library/itertools.html#itertools-recipes ? I heard about this on stackoverflow.com/questions/11113803
– AnotherParker
Jun 5 at 20:32
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How to pretty-print a numpy.array without scientific notation and with given precision?
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If `x` and `A` are numbers, this is like `"format" % (x, A, "str", B)` in python.
If they're numpy arrays, each element is printed in its own format:
`x`: e.g. [ 1.23 1.23e-6 ... ] 3 digits
`A`: [ [ 1 digit after the decimal point ... ] ... ]
with the current `np.set_printoptions()`. For e...
Heroku push rejected, no Cedar-supported app detected
...ey file that it uses to identify your app (and its type).
php: index.php
python: requirements.txt
ruby: Gemfile # note the capitalization
node: package.json
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How can I decompress a gzip stream with zlib?
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In python: zlib.decompress(data, 15 + 32)
– Roman Starkov
Jan 18 '10 at 0:57
3
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Check if string ends with one of the strings from a list
What is the pythonic way of writing the following code?
8 Answers
8
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How to pipe stdout while keeping it on screen ? (and not to a output file)
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Here is a solution that works at on any Unix / Linux implementation, assuming it cares to follow the POSIX standard. It works on some non Unix environments like cygwin too.
echo 'ee' | tee /dev/tty | foo
Reference: The Open Group Base Specifications Issue 7
IEEE Std 1...
Select random lines from a file
...ing multiple threads, it pinned 1 core at 100% the other 15 were not used.
Python is what I regularly use so that's what I'll use to make this faster:
#!/bin/python3
import random
f = open("lines_78000000000.txt", "rt")
count = 0
while 1:
buffer = f.read(65536)
if not buffer: break
count += bu...