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Assigning default values to shell variables with a single command in bash
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1328
Very close to what you posted, actually:
FOO=${VARIABLE:-default} # If variable not set or nu...
How to check if running as root in a bash script
...UID" -ne 0 ]
then echo "Please run as root"
exit
fi
Note: If you get 2: [: Illegal number: check if you have #!/bin/sh at the top and change it to #!/bin/bash.
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How can I improve my paw detection?
...pdate the image data and title of the plot
title.set_text('Time %0.2f ms' % time)
im.set_data(frame)
im.set_clim([frame.min(), frame.max()])
fig.canvas.draw()
def find_paws(data, smooth_radius=5, threshold=0.0001):
"""Detects and isolates contiguous regions in th...
Unpack a list in Python?
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296
function_that_needs_strings(*my_list) # works!
You can read all about it here.
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Improve subplot size/spacing with many subplots in matplotlib
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442
Try using plt.tight_layout
As a quick example:
import matplotlib.pyplot as plt
fig, axes = pl...
PHP编译安装时常见错误解决办法，php编译常见错误 - 更多技术 - 清泛网 - ...
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代码如下:
yum -y install libicu-devel
configure: error: utf8mime2text() has new signature, but U8TCANONICAL is missing. This should not happen. Check config.log for additional information.
代码如下:
yum -y install libc-client-devel
configure: error: freetype.h not found.
代码...
What is the proper way to check for existence of variable in an EJS template (using ExpressJS)?
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Bruiser
11.2k55 gold badges3131 silver badges4444 bronze badges
answered Mar 21 '11 at 0:22
tjholowaychuktjholow...
Get value from NSTextField
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edited Jan 2 '15 at 6:08
jscs
61.3k1212 gold badges141141 silver badges184184 bronze badges
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What is the Swift equivalent to Objective-C's “@synchronized”?
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21 Answers
21
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Threads vs Processes in Linux
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324
Linux uses a 1-1 threading model, with (to the kernel) no distinction between processes and thr...