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How to call shell commands from Ruby
...ed backticks – `cmd`
This is like many other languages, including Bash, PHP, and Perl.
Returns the result (i.e. standard output) of the shell command.
Docs: http://ruby-doc.org/core/Kernel.html#method-i-60
value = `echo 'hi'`
value = `#{cmd}`
Built-in syntax, %x( cmd )
Following the x charac...
.htaccess not working apache
... from AWS EC2 service running on Linux ubuntu and I have installed apache, php, and mysql.
12 Answers
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Easiest way to copy a single file from host to Vagrant guest?
...py files but didn't work and giving error vagrant scp /vagrant/www/koushik.php ubuntu/trusty64:/usr/share/nginx/html I am trying to copy files into the nginx root directory. It says, The machine with the name 'C' was not found configured for this Vagrant environment. The directory and everything is ...
Repeat String - Javascript
...even a single character to a string requires creation of, including memory allocation for and copying to, an entire new string.
Unfortunately, the accepted answer on this page is wrong, where "wrong" means by a performance factor of 3x for simple one-character strings, and 8x-97x for short strings ...
What is the difference between JSON and Object Literal Notation?
...ge-independent, meaning they can be processed by Java, Python, JavaScript, PHP, you name it.
In contrast, JavaScript is a programming language. Of course JavaScript also provides a way to define/describe data, but the syntax is very specific to JavaScript.
As a counter example, Python has the conc...
setMaxResults for Spring-Data-JPA annotation?
...Not sure if limit is supported in Hibernate: forum.hibernate.org/viewtopic.php?f=9&t=939314
– Witold Kaczurba
Apr 28 '17 at 12:38
2
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“is” operator behaves unexpectedly with integers
...n documentation and we would've know all along!:
/* Small integers are preallocated in this array so that they
can be shared.
The integers that are preallocated are those in the range
-NSMALLNEGINTS (inclusive) to NSMALLPOSINTS (not inclusive).
*/
static PyLongObject small_ints[NSMALLNEGIN...
How can I extract audio from video with ffmpeg?
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FWIW, I have crafted a PHP script, so that I just specify the input video file, and it automatically determines the extension of the output audio file: superuser.com/questions/1301901/…
– Gras Double
Jul 22 ...
Limit File Search Scope in Sublime Text 2
...ield - eg:
-*/node_modules/*
http://www.sublimetext.com/forum/viewtopic.php?f=2&t=3847&start=10
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Is R's apply family more than syntactic sugar?
...u mean to set y to 1:1e6, not numeric(1e6) (a vector of zeroes). Trying to allocate foo(0) to z[0] over and over does not illustrate well a typical for loop usage. The message is otherwise spot on.
– flodel
Dec 1 '16 at 4:33
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