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Checking Bash exit status of several commands efficiently
Is there something similar to pipefail for multiple commands, like a 'try' statement but within bash. I would like to do something like this:
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Execute command on all files in a directory
...o standard out. I need a script that will go into a directory, execute the command on each file, and concat the output into one big output file.
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Creating C formatted strings (not printing them)
...( char * str, const char * format, ... );
Write formatted data to string Composes a string with the same text
that would be printed if format was used on printf, but instead of
being printed, the content is stored as a C string in the buffer
pointed by str.
The size of the buffer should be large e...
Conditional compilation and framework targets
...k were a newer version. I'd like to be able to better leverage conditional compilation in C# to switch these as needed.
7 A...
Setting different color for each series in scatter plot on matplotlib
...(["r", "b", "g"])
for y in ys:
plt.scatter(x, y, color=next(colors))
Come to think of it, maybe it's cleaner not to use zip with the first one neither:
colors = iter(cm.rainbow(np.linspace(0, 1, len(ys))))
for y in ys:
plt.scatter(x, y, color=next(colors))
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Can you split a stream into two streams?
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Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
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Edit: This is a more complete version that shows more differences between [ (aka test) and [[.
The following table shows that whether a variable is quoted or not, whether you use single or double brackets and whether the variable contains only a...
Determine if two rectangles overlap each other?
...from bottom to top -- if this is not how your coordinate system [e.g. most computers have the Y direction reversed], swap the comparisons below) ...
if (RectA.X1 < RectB.X2 && RectA.X2 > RectB.X1 &&
RectA.Y1 > RectB.Y2 && RectA.Y2 < RectB.Y1)
Say you hav...
How to calculate the SVG Path for an arc (of a circle)
...ic doesn't work if you use negative angles. This works -360 to +360: jsbin.com/kopisonewi/2/edit?html,js,output
– Xcodo
Sep 7 '16 at 8:58
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What is the best way to get all the divisors of a number?
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monoxide: this computes all multiplicative combinations of the given factors. Most of it should be self-explanatory; the "yield" line is like a return but keeps going after returning a value. [0]*nfactors creates a list of zeros of length n...