Write a similar description of what happens when you print a document.​

Since you want to identify all devices on a network along with a list of open ports on those devices. you want the results displayed in a graphical diagram. the tool that you use is Port scanner.

Finding open ports on a network that might be receiving or transferring data is a process called port scanning. In order to find vulnerabilities, it also entails sending packets to particular ports on a host and examining the answers.

Note that Only when used with a residential home network or when specifically approved by the destination host and/or network are network probing or port scanning tools allowed. Any kind of unauthorized port scanning is absolutely forbidden.

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Using the knowledge in computational language in python it is possible to write a code that the pseudocode outline of your program;

import sys

import os

def main():

   # Check and retrieve command-line arguments

   if len(sys.argv) != 3:

       print(__doc__)

       sys.exit(1)   # Return a non-zero value to indicate abnormal termination

   fileIn  = sys.argv[1]

   fileOut = sys.argv[2]

   # Verify source file

   if not os.path.isfile(fileIn):

       print("error: {} does not exist".format(fileIn))

       sys.exit(1)

   # Verify destination file

   if os.path.isfile(fileOut):

       print("{} exists. Override (y/n)?".format(fileOut))

       reply = input().strip().lower()

       if reply[0] != 'y':

          sys.exit(1)

   # Process the file line-by-line

   with open(fileIn, 'r') as fpIn, open(fileOut, 'w') as fpOut:

       lineNumber = 0

       for line in fpIn:

           lineNumber += 1

           line = line.rstrip()   # Strip trailing spaces and newline

           fpOut.write("{}: {}\n".format(lineNumber, line))

           # Need \n, which will be translated to platform-dependent newline

       print("Number of lines: {}\n".format(lineNumber))

if __name__ == '__main__':

   main()

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