short-code | Create | Hashing library

What is the significance of -- in the command line of commands like lxc-create or lxc-start.

I tried to use Google in order to get an answer but without success.

I have following html in a web-page generated from a vendor's software which contains WordPress style [short-code] tags:

I am starting to test Twilio's carrier lookup API (with Python) and I get a dictionary return as below: print(phone_number.carrier)

{'name': '**Sprint Spectrum, L.P**.', 'mobile_network_code': '880','mobile_country_code': '311', 'error_code': None, 'type': 'mobile'}

Here are some other carrier strings I have had returned:

MkDocs Material comes packaged with many icons, and makes it very easy to use them in markdown. You can put short-codes anywhere in your Markdown, and they render perfectly.

I'm trying to create a gird which is 1:1 which I have done but there must be a tidier way. I will be editing this text and image everyday so need it to be tidy and easy to determine what is what... here is what I have done so far, which is far from ideal...

I'd like to do it via short-code but I'm not sure how to approach it. Perhaps someone here can help me out?

I am trying to add multiple lines of code in a custom html page template between a shortcode that would restrict the content .

The short-code is:

I bought a WordPress theme for affiliate marketing business. I have 1000+ stores on my website and hence hundred of coupons on homepage.I simply write a short-code to fetch all coupons and they started to appear on homepage .All coupons are based on different categories.

How can i exclude a number of coupons from homepage and that is possible only if we can exclude some categories from homepage based on their IDs.

I Google it many times but each time i found "pre_get_posts" function to do so. But in my case, it's not working at all. The code is below

I have the following code that lists 5 steps in a row on large screen devices like laptops and desktops and would like to make the same code responsive for mobile and tablets but for the past 3 days i can't get it to work.

I have tried media queries and they don't seem to do the trick. How can I alter the code to make it responsive?

I'm trying to call a WordPress function ( get_avatar($id) ) from a php script that is being accessed in an ajax referenced call from an enqueued javascript file. (Saying this out load already makes my head hurt).

As a an example, I've created a plugin for WordPress: hmm-test. It is implemented in hmm-test.php. This script enqueues a javascript file: test.js. Within the js I have an xhttprequest call that POSTS to hmm-test.php, which branches on a test for a POST variable.

When hmm-test.php is called as a GET, for example using the WordPress URL for the page where the short-code is embedded, I can call WordPress functions. From the POST branch, I want to be able to call WordPress native functions as well to return that as part of the JSON payload.

So my question is: can I make the 'POST' side branch of hmm-test.php 'wordpress-aware' such that I can call native WP functions from within it?

I'm stuck - not sure what else to try. I tried creating a REST endpoint to call via an Ajax URL early on but kept running into auth problems. If this would work, I can spend time working through it, but I've found the OAuth bits tricky. I had it working for something else, and lost it. If there's a way to do it with a simple POST, that's good enough for my proof of concept.

Here is the plugin PHP script and the enqueued javascript in their entirety: