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Serving static files with Sinatra
...e index document.
require 'rubygems'
require 'sinatra'
get '/' do
File.read(File.join('public', 'index.html'))
end
Routes should return a String which become the HTTP response body. File.read opens a file, reads the file, closes the file and returns a String.
...
How to read environment variables in Scala
In Java, reading environment variables is done with System.getenv() .
6 Answers
6
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Environment variables in Mac OS X
...the machine (assuming they use bash).
~/.MacOSX/environment.plist: this is read by loginwindow on login. It applies to all applications, including GUI ones, except those launched by Spotlight in 10.5 (not 10.6). It requires you to logout and login again for changes to take effect. This file is no lo...
How can I pipe stderr, and not stdout?
...edirect stderr to stdout and then stdout to /dev/null' -- Since one has to read redirection chains from right to left (not from left to right), we should also adapt our plain text explanation to this: 'Redirect stdout to /dev/null, and then stderr to where stdout used to be'.
–...
How does the Brainfuck Hello World actually work?
...ng pointer from cell X to cell X-1
...[0][0][*0*][1][0]...
2. Input
To read character you use comma ,. What it does is: Read character from standard input and write its decimal ASCII code to the actual cell.
Take a look at ASCII table. For example, decimal code of ! is 33, while a is 97.
Well,...
Disabled form inputs do not appear in the request
...navigation.
Disabled controls cannot be successfully posted.
You can use readonly attribute in your case, by doing this you will be able to post your field's data.
I.e.,
<input type="textbox" name="Percentage" value="100" readonly="readonly" />
FYI, per 17.12.2 in the HTML 4 spec:
Read...
Git Commit Messages: 50/72 Formatting
...ak.
This is a thought, perhaps an explanation of what I have done in human readable format. It may be complex and long consisting of several sentences that describe my work in essay format. It is not up to me to decide now (at author time) how the user is going to consume this data.
Two line brea...
How do I read configuration settings from Symfony2 config.yml?
...APPROACH: Separated config block, injecting the config into a service
For readers looking for something similar but for getting the config from a service, there is even a nicer way that never clutters the "paramaters" common space and does even not need the container to be passed to the service (pa...
How do you add swap to an EC2 instance?
...ck size' and count is the number of blocks you want to allocate… you can read the man page of the command for more info: linux.die.net/man/1/dd
– Fábio Batista
May 19 '14 at 22:23
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How to check if a file is empty in Bash?
...efaults set for ls that use the long format (like me) and the shell will already expand *.txt on its own. Just do for file in *.txt instead.
– Lilith
Jun 26 '18 at 17:19
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