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Shell script to delete directories older than n days
...ype d: only find directories
-ctime +10: only consider the ones with modification time older than 10 days
-exec ... \;: for each such result found, do the following command in ...
rm -rf {}: recursively force remove the directory; the {} part is where the find result gets substituted into from the p...
What's the difference between “Normal Reload”, “Hard Reload”, and ...
...
Normal reload
The same thing as pressing F5. This will use the cache but revalidate everything during page load, looking for "304 Not Modified" responses. If the browser can avoid re-downloading cached JavaScript files, images, text files, etc. then it will.
Hard reload
Don't use anythi...
How to uglify output with Browserify in Gulp?
...vert the streaming vinyl file object given by source() with vinyl-buffer because gulp-uglify (and most gulp plugins) works on buffered vinyl file objects
So you'd have this instead
var browserify = require('browserify');
var gulp = require('gulp');
var uglify = require('gulp-uglify');
var source ...
how does array[100] = {0} set the entire array to 0?
...ehavior of this code in C is described in section 6.7.8.21 of the C specification (online draft of C spec): for the elements that don't have a specified value, the compiler initializes pointers to NULL and arithmetic types to zero (and recursively applies this to aggregates).
The behavior of this ...
In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?
...atabase you're using.
Using MySQL as an example (if for no other reason because it's most popular), you have DATE, DATETIME, TIME and TIMESTAMP column data types; just as you have CHAR, VARCHAR, FLOAT and INTEGER.
So, you ask, what's the difference? Well, some of them are self-explanatory. DATE on...
Update multiple rows in same query using PostgreSQL
...
You can also use update ... from syntax and use a mapping table. If you want to update more than one column, it's much more generalizable:
update test as t set
column_a = c.column_a
from (values
('123', 1),
('345', 2...
Passing an Array as Arguments, not an Array, in PHP
...ndard func($arg1, $arg2) manner. But now I'm lost on how to do it. I recall the manner of passing by reference, how to "glob" incoming parameters ... but not how to de-list the array into a list of arguments.
...
Trigger change() event when setting 's value with val() function
...is is exactly what I needed. What is the best way to discover how to dynamically trigger DOM event handlers? Does jQuery document this well? Thank you!
– Con Antonakos
Oct 1 '14 at 17:38
...
Is it safe to shallow clone with --depth 1, create commits, and pull updates again?
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--depth <depth>::
Create a 'shallow' clone with a history truncated to the specified number of revisions.
That stems from commits like 0d7d285, f2c681c, and c29a7b8 which support clone, send-pack /receive-pack with/from shallow clones.
smart-http now supports shallow fetch/clone too.
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Concatenating two one-dimensional NumPy arrays
... have two simple one-dimensional arrays in NumPy . I should be able to concatenate them using numpy.concatenate . But I get this error for the code below:
...