The language is bash

Create a bash script called "lookup" that will do the following:

a. Sort "datafile" by last names. (datafile is a text file i will create with first and last names and an address)

b. Show the user the contents of "datafile".

c. Tell the user the number of entries in the file and Ask the user if they would like to add a new entry to datafile

d. If the answer is y or yes then prompt the user to enter new name and address. Each variable will be stored separetly and you will append the new information into the datafile.

e. Sort the datafile by last names and Tell the user you added their entry and show them the line preceded by the line number.