Imagine that you have a file in URL and you need to download it from the Linux command line. You can use a simple
wget http client which can be found in many Linux distros.
Wget is basically a command line web browser without graphical presentation - it just downloads the content, be it even HTML, PDF or JPG, and saves it to file.
Let’s assume that your resource is
https://fullstack-tutorials.com/linux/linux-check-free-disk-space. In your terminal, type:
$ wget https://fullstack-tutorials.com/linux/linux-check-free-disk-space
You should get an output similar to this:
--2020-01-02 20:47:34-- https://fullstack-tutorials.com/linux/linux-check-free-disk-space Resolving fullstack-tutorials.com... 2606:4700:30::681f:5337, 2606:4700:30::681f:5237, 220.127.116.11, ... Connecting to fullstack-tutorials.com|2606:4700:30::681f:5337|:443... connected. HTTP request sent, awaiting response... 200 OK Length: unspecified [text/html] Saving to: “linux-check-free-disk-space” [ <=> ] 17,086 --.-K/s in 0s 2020-01-02 20:47:34 (57.6 MB/s) - “linux-check-free-disk-space” saved 
This makes the request, receives 200 OK header and then downloads and saves the HTML file linux-check-free-disk-space.
You can easily check the file:
$ cat linux-check-free-disk-space <!DOCTYPE html> <html lang="en-US"> ...
In this case, you could check the article: Request URL With wget Without Saving File