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Difference between return and exit in Bash functions
... is executed before the shell terminates.
EDIT:
As per your edit of the question, regarding exit codes, return has nothing to do with exit codes. Exit codes are intended for applications/scripts, not functions. So in this regard, the only keyword that sets the exit code of the script (the one tha...
URL encoding the space character: + or %20?
...orm field names and values are encoded and sent to the server in an HTTP request message using method GET or POST, or, historically, via email. The encoding used by default is based on a very early version of the general URI percent-encoding rules, with a number of modifications such as newline norm...
Get JSON object from URL
...json);
echo $obj->access_token;
For this to work, file_get_contents requires that allow_url_fopen is enabled. This can be done at runtime by including:
ini_set("allow_url_fopen", 1);
You can also use curl to get the url. To use curl, you can use the example found here:
$ch = curl_init();
//...
Automate ssh-keygen -t rsa so it does not ask for a passphrase
...
On RHEL 6, I got this error: "ssh-keygen: option requires an argument -- N" :(
– Anthony O.
Dec 9 '15 at 15:02
1
...
Rails CSRF Protection + Angular.js: protect_from_forgery makes me to log out on POST
...ntioned in application_controller, then I can log in and perform any GET requests, but on very first POST request Rails resets the session, which logs me out.
...
How to install Java SDK on CentOS?
...oad it and directly install via rpm.
For all who are interested:
wget -q http://www.oracle.com/technetwork/java/javase/downloads/index.html -O ./index.html && grep -Eoi ']+>' index.html | grep -Eoi '/technetwork/java/javase/downloads/jdk8-downloads-[0-9]+.html' | (head -n 1) | awk '{p...
Optimizing away a “while(1);” in C++0x
...n), and p is a local variable, whose address has not been taken:
for (p = q; p != 0; p = p -> next) {
++count;
}
for (p = q; p != 0; p = p -> next) {
++count2;
}
Could these two loops be merged and replaced by the following loop?
for (p = q; p != 0; p = p -> next) {
...
How to parse an RSS feed using JavaScript?
...
Parsing the Feed
With jQuery's jFeed
(Don't really recommend that one, see the other options.)
jQuery.getFeed({
url : FEED_URL,
success : function (feed) {
console.log(feed.title);
// do more stuff here
}
});
With jQuer...
How do you create a Distinct query in HQL
Is there a way to create a Distinct query in HQL. Either by using the "distinct" keyword or some other method. I am not sure if distinct is a valid keywork for HQL, but I am looking for the HQL equivalent of the SQL keyword "distinct".
...
Convert audio files to mp3 using ffmpeg
...cluded if the source would be a video file
-ar - Set the audio sampling frequency. For output streams it is set by default to the frequency of the corresponding input stream. For input streams this option only makes sense for audio grabbing devices and raw demuxers and is mapped to the corresponding...