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How to get all of the immediate subdirectories in Python
...ural sorting (1, 2, 10), please have a look at https://stackoverflow.com/a/48030307/2441026
Results:
scandir is: 3x faster than walk, 32x faster than listdir (with filter), 35x faster than Pathlib and 36x faster than listdir and 37x (!) faster than glob.
Scandir: 0.977
Walk: ...
What's an easy way to read random line from a file in Unix command line?
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384
You can use shuf:
shuf -n 1 $FILE
There is also a utility called rl. In Debian it's in the ra...
IE8 issue with Twitter Bootstrap 3
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edited Mar 7 '14 at 1:07
Chris Simmons
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What's the difference between %s and %d in Python string formatting?
...are passed in via a tuple using the % operator.
name = 'marcog'
number = 42
print '%s %d' % (name, number)
will print marcog 42. Note that name is a string (%s) and number is an integer (%d for decimal).
See https://docs.python.org/3/library/stdtypes.html#printf-style-string-formatting for deta...
How to detect if app is being built for device or simulator in Swift
...t iOS on a desktop architecture like follows
#if (arch(i386) || arch(x86_64)) && os(iOS)
...
#endif
After Swift 4.1 version
Latest use, now directly for all in one condition for all types of simulators need to apply only one condition -
#if targetEnvironment(simulator)
// yo...
What's the best way to use R scripts on the command line (terminal)?
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edited Jul 3 '19 at 9:24
Konrad Rudolph
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Copying a HashMap in Java
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ratchet freakratchet freak
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Confused by python file mode “w+”
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– Nasif Imtiaz Ohi
Jan 5 '18 at 23:49
25
@NasifImtiazOhi - The Python docs say that w+ will "ove...
When is finally run if you throw an exception from the catch block?
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141
It would be called after e is re-thrown (i.e. after the catch block is executed)
editing this ...
Who is listening on a given TCP port on Mac OS X?
...this command:
lsof -nP -iTCP:$PORT | grep LISTEN
or to just see just IPv4:
lsof -nP -i4TCP:$PORT | grep LISTEN
On older versions, use one of the following forms:
lsof -nP -iTCP:$PORT | grep LISTEN
lsof -nP -i:$PORT | grep LISTEN
Substitute $PORT with the port number or a comma-separated lis...