howto: wget and curl                  rev 22 oct 2020

 Both download files from the command line - a text file, image, video, raw html page.

 Both can send data to a website, like filing out a form
    (can make HTTP POST requests).

 Both can be included in bash scripts.

  wget - Download something quickly without needing to worry about flags.
    - Meant for quick downloads, and it’s excellent at it. 
    - Simple and straightforward. 
    - Download recursively. 
        Download everything on a page, an entire website,
        all of the files in an FTP directory.
    - Intelligent defaults. 
        Specifies how to handle a lot of things that a normal browser
        would, like cookies and redirects, without the need to add
        any configuration. 
    - Works out of the box.
        Single self-contained program. 
        Doesn’t require any extra libraries. 

  cURL - Do something more complex.
    - like a stripped-down command line web browser. 
        It supports just about every protocol you can think of and
        can access and interact with nearly all online content.
    - Powered by a library: libcurl.
    - more protocols:
        Can access websites over HTTP and HTTPS 
        Can handle FTP in both directions. 
        Supports LDAP and even Samba shares. 
        Can use cURL to send and retrieve email.
        Has SSL/TLS libraries. 
        Supports Internet access via proxies, including SOCKS. 
            That means you can use cURL over Tor.



.........................
difference between:

  Central difference:
    curl - transfers data from any server over to your computer. 
            not recursive.
            more protocols.
            multiple platforms (libcurl)
    wget -  downloads the data as a file. 
            recursive.
            http, https, ftp
            mostly linux

  * https://www.linuxfordevices.com/tutorials/linux/wget-vs-curl
      summaries of each

  * https://www.maketecheasier.com/curl-vs-wget/
      summaries of each, plus
      how to install, 
      similarities.
      differences as a table.
      screenshots of output.



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