Perform the following scripting tasks using the above data file:

$1.$ Create a MENU script which provides the following options:

A $-$ Add A Student

D $-$ Delete A Student

C $-$ Calculate Student Grades

P $$ Print Student List

V $-$ View Raw Student Data File

Q $-$ Quit

This menu script should accept either upper or lower case responses and it should clear the screen each time it asks for

a new selection. Call this script stumenu and put it $($and all other scripts$)$ in the your home directory $($I will grade your

scripts by pulling them from fawad$).$

$2.$ Develop a $$print$$ script similar to the phlist$1.$ However, the script should first ask the user what sort order is desired

for the list: Student Number or Student Name. The script should implement this choice by loading and using a

function file called $.$stusorts$.$ The guide for this step is project $7-19$ of the text, plus our modified phlist$1$ program

$($posted on blackboard$).$ Call your script stulist and leave it in your home directory.

$3.$ Develop an 'Add Student' script by adapting the improved phoneadd script developed in class. The script should

allow for $\text{'}$Q$\text{'}$ or $\text{'}$q$\text{'}$ to quit on any line except that for the Middle Initial input line a capital Q will be considered valid

input and not a request to quit $($but lower$-$case $$q$$ would mean quit$).$ It does need to have the 'back up one field'

feature available on any input line $($as per the improved phoneadd$).$ Call your script stuadd.

$4.$ Develop a 'Delete Student' script by adapting the phonedel script developed in class. The phonedel script is based on

the delete procedure presented in the text in project $7-11.$ Make sure your delete script checks for the existence of a

student number $*$before$*$ it executes the delete. Continue to give the operator a 'final chance' to abort the delete $($as in

the sample provided$).$ Call this script studel.

$5.$ Develop a grade calculating script. This program will process all students in the students file and should neatly

display each field of each student's record along with the following additional items: Course Average and Letter

Grade. The course average is calculated by the following weights: $50\%$ for quiz average, $15\%$ for midterm, $10\%$ for

problems, and $25\%$ for final exam. The letter grade is based on the normal grade brackets: $90/80/70/60.$ This script

should be called stugrades. Note that there is no direct equivalent in the text$$s phone menu system: details and a

scripting guide will be developed in class $($or via recorded lecture$).$

$6.$ The $$view raw$$ option just uses the less command to display the contents of students file $($as in phmenu$)$