What Is 2>&1 Mean In Linux Shell

What is 2>&1 mean in Linux shell

In this post we will give you information about What is 2>&1 mean in Linux shell. Hear we will give you detail about What is 2>&1 mean in Linux shellAnd how to use it also give you demo for it if it is necessary.

we are going to learn about what is meaning of 2>&1 in Linux shell.

Consider we have a example command like this.

curl http://www.google.com &gt; /dev/null 2&gt;&amp;1

What does 2>&1 in the above command?

2 is a standard error (stderr) file descriptor.

> is used for redirection.

& indicates follow a file descriptor, not a file name.

1 is a standard output (stdout) file descriptor.

At final this 2>&1 command is used to redirect standard error to the standard output, it means to redirect the standard error to the same location where standard output is redirected.

Hope this code and post will helped you for implement What is 2>&1 mean in Linux shell. if you need any help or any feedback give it in comment section or you have good idea about this post you can give it comment section. Your comment will help us for help you more and improve us. we will give you this type of more interesting post in featured also so,

In this post we will give you information about PHP - I Can't get the $_POST Values on Ajax Request. Hear we will give you detail about PHP - I Can't get the $_POST Values on Ajax RequestAnd how to use it also give you demo for it if it is necessary.

I want to share this posts with you because when i was working on native PHP and Ajax Post request(Specially AngularJS Post request) at that time i can't get Post value on form submit. That's why i would like to share you this post. I also want to tell you i was working on my Ubuntu 14.04. I did try lot but i can't get value.

At last find stuff to how to solve this issue, i did use "file_get_contents('php://input')" that way i could get POST value in json object and i also decode json value using "json_decode()". So let's try this way :

Example:

$post = file_get_contents('php://input');
$post = json_decode($post);
$sql = "INSERT INTO items (title) VALUES ('".$post->title."')";
$result = $mysqli->query($sql);

Hope this code and post will helped you for implement PHP - I Can't get the $_POST Values on Ajax Request. if you need any help or any feedback give it in comment section or you have good idea about this post you can give it comment section. Your comment will help us for help you more and improve us. we will give you this type of more interesting post in featured also so, For more interesting post and code Keep reading our blogs

For More Info See :: laravel And github