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Bash: Strip trailing linebreak from output
.../\n$//'
sed won't add a \0 to then end of the stream if the delimiter is set to NUL via -z, whereas to create a POSIX text file (defined to end in a \n), it will always output a final \n without -z.
Eg:
$ { echo foo; echo bar; } | sed -z '$ s/\n$//'; echo tender
foo
bartender
And to prove no N...
Get a filtered list of files in a directory
...ns for filtering, and it can have some memory overhead for very large data sets, but for listing a directory and other simple string filtering tasks, list comprehensions lead to more clean documentable code.
The only thing about this design is that it doesn't protect you against making the mistake ...
Reflecting parameter name: abuse of C# lambda expressions or syntax brilliance?
I am looking at the MvcContrib Grid component and I'm fascinated, yet at the same time repulsed, by a syntactic trick used in the Grid syntax :
...
How do I create a list of random numbers without duplicates?
...(insanelyLargeNumber, 10)).
To fix that, I would go with this:
answer = set()
sampleSize = 10
answerSize = 0
while answerSize < sampleSize:
r = random.randint(0,100)
if r not in answer:
answerSize += 1
answer.add(r)
# answer now contains 10 unique, random integers fro...
Rename all files in directory from $filename_h to $filename_half?
...
Just use bash, no need to call external commands.
for file in *_h.png
do
mv "$file" "${file/_h.png/_half.png}"
done
Do not add #!/bin/sh
For those that need that one-liner:
for file in *.png; do mv "$file" "${file/_h.png/_half.png}"; done
...
Creating a dictionary from a csv file?
...ion. d = dict(reader) is much shorter and significantly faster on huge datasets.
– Alex Laskin
Jul 19 '11 at 1:44
...
Replacing .NET WebBrowser control with a better browser, like Chrome?
...ve had pretty bad experiences of using WebKit with C# and finally I had to settle on the default web browser component which comes with .NET
– Sumit Ghosh
Dec 10 '10 at 23:54
1
...
Best way to change the background color for an NSView
... change the backgroundColor of an NSView . I'd also like to be able to set the appropriate alpha mask for the NSView . Something like:
...
Is it possible to specify your own distance function using scikit-learn K-Means Clustering?
...eed = 1
exec( "\n".join( sys.argv[1:] )) # run this.py N= ...
np.set_printoptions( 1, threshold=200, edgeitems=5, suppress=True )
np.random.seed(seed)
random.seed(seed)
print "N %d dim %d ncluster %d kmsample %d metric %s" % (
N, dim, ncluster, kmsample, metric)
...
Explain how finding cycle start node in cycle linked list work?
...re properties of the given list. If we can show that there is at least one set of values for k, q, p that makes this equation true we show that the hypothesis is correct.
One such solution set is as follows:
p = 0
q = m
k = m n - m
We can verify that these values work as follows:
m + k = ( q...