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Reading and writing environment variables in Python? [duplicate]
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One learns python by doing, not reading
– CpILL
Apr 8 '19 at 6:27
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How to sort the files according to the time stamp in unix? [closed]
...fication:
ls -t
Inode change:
ls -tc
File access:
ls -tu
"Newest" one at the bottom:
ls -tr
None of this is a creation time. Most Unix filesystems don't support creation timestamps.
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How to get a random number between a float range?
...umpy provides the same distributions as python, as well as many additional ones.
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How to hide a button programmatically?
...ow stop button and hide play button
playButton.setVisibility(View.GONE);
stopButton.setVisibility(View.VISIBLE);
}
});
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Eclipse plugin for generating a class diagram [closed]
... for ObjectAid and a few other mentions, most of the Eclipse plug-ins mentioned in the listed questions may no longer be available, or would work only against older versions of Eclipse.
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Call to undefined function curl_init().? [duplicate]
... sudo apt-get install php-curl then sudo service apache2 reload done!
– zeros-and-ones
Nov 16 '16 at 17:15
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Check whether a value is a number in JavaScript or jQuery [duplicate]
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In one line: +str + '' === str
– basil
Sep 12 '18 at 11:49
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Difference between exit() and sys.exit() in Python
...ns, exit() and sys.exit() . What's the difference and when should I use one over the other?
2 Answers
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Replace all whitespace characters
...espace character (equal to [\r\n\t\f\v ])
+ Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)
Global pattern flags
g modifier: global. All matches (don't return after first match)
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Extract directory from path
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There is one case where dirname has an advantage over the (more efficient) built-in approach, and that's if you aren't certain that your path is fully-qualified to start with. If you have file=file.zip, dirname "$file" will return ., ...