How to resolve the algorithm Hello world/Web server step by step in the AWK programming language

Published on 12 May 2024 09:40 PM

How to resolve the algorithm Hello world/Web server step by step in the AWK programming language

Table of Contents

Problem Statement

The browser is the new GUI !

Serve our standard text   Goodbye, World!   to   http://localhost:8080/   so that it can be viewed with a web browser. The provided solution must start or implement a server that accepts multiple client connections and serves text as requested. Note that starting a web browser or opening a new window with this URL is not part of the task. Additionally, it is permissible to serve the provided page as a plain text file (there is no requirement to serve properly formatted HTML here). The browser will generally do the right thing with simple text like this.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Hello world/Web server step by step in the AWK programming language

Source code in the awk programming language

#!/usr/bin/gawk -f
     BEGIN {
       RS = ORS = "\r\n"
       HttpService = "/inet/tcp/8080/0/0"
       Hello = "<HTML><HEAD>" \
               "<TITLE>A Famous Greeting</TITLE></HEAD>" \
               "<BODY><H1>Hello, world</H1></BODY></HTML>"
       Len = length(Hello) + length(ORS)
       print "HTTP/1.0 200 OK"          |& HttpService
       print "Content-Length: " Len ORS |& HttpService
       print Hello                      |& HttpService
       while ((HttpService |& getline) > 0)
          continue;
       close(HttpService)
     }


  

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