Question

Consider a text file containing ip addresses, one address per physical line. This file may contain some invalid addresses. Create a csv file from this input file such that the invalid ip addresses are removed. The first column of this csv file contains the valid ip address and the second column contains the class a, b, c, dor e. Implement this using regular expressions.

Answer 1

a text file containing ip addresses, one address per physical line. This file may contain some invalid addresses. Create a csv file from this input file such that the invalid ip addresses are removed. The first column of this csv file contains the valid ip address and the second column contains the class a, b, c, dor e. Implement