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Select random lines from a file
In a Bash script, I want to pick out N random lines from input file and output to another file.
4 Answers
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How to Remove Array Element and Then Re-Index Array?
...t to modify like below. I want to remove element (elements) of it by index and then re-index array. Is it possible?
9 Answe...
PHP Replace last occurrence of a String in a String?
... can't be made it returns the original $subject, just like substr_replace and str_replace do.
– Mischa
Jul 12 '13 at 0:58
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How to get a random number between a float range?
randrange(start, stop) only takes integer arguments. So how would I get a random number between two float values?
4 Answer...
Breakpoint on property change
...d "Break on property change", where I can mark any property of any object, and it will stop JavaScript execution right before the change.
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How can I see what has changed in a file before committing to git?
...ere are three useful ways to use git diff:
Show differences between index and working tree; that is, changes you haven't staged to commit:
git diff [filename]
Show differences between current commit and index; that is, what you're about to commit (--staged does exactly the same thing, use what y...
Set cursor position on contentEditable
...
This is compatible with the standards-based browsers, but will probably fail in IE. I'm providing it as a starting point. IE doesn't support DOM Range.
var editable = document.getElementById('editable'),
selection, range;
// Populates selection and ...
jQuery’s .bind() vs. .on()
...d from future versions at any time. There is no reason to keep using .bind and every reason to prefer .on instead.
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Python : List of dict, if exists increment a dict value, if not append a new dict
...en easier:
from collections import defaultdict # available in Python 2.5 and newer
urls_d = defaultdict(int)
for url in list_of_urls:
urls_d[url] += 1
If you access the defaultdict using a key, and the key is not already in the defaultdict, the key is automatically added with a default valu...
Fatal error: Maximum execution time of 300 seconds exceeded
...ries (change path according to your installation)
open config.default.php and change value for $cfg['ExecTimeLimit'] to 0:
$cfg['ExecTimeLimit'] = 0;
This will resolve the issue for PhpMyAdmin imports.
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