Simple calculator and user interaction !bin/bash while [ -z "$argl"] entered #will be repeated until a data will be read P Enter argumentl:arl done while [ -z "arg2"1 entered #will be repeated until a data will be read -p "Enter argument2: arg2 done echo "You've entered: argl-$argl and arg2-arg2" let "addition-argl+arg2" let "subtraction-argl-arg2" let "multiplication-argl arg2" let "division-argl arg2" let "reminder-arg1 % arg2" echo -e "results: " echo "$argl+arg2-$addition" echo "$argl-$arg2-$subtraction" echo " $argl arq2-multiplication" echo " argl/arq2- (division+Sreminder/arg2)" (Script 1) MODIFY the script provided above so that it would perform operations"+","-", "*", "7" (only the whole part of the division operation, ignore the reminder part) and "A" (power). Implement the power operation, probably in the form of some sort of loop operations. Once you write the script, you will be required to upload it to the scriptcheck.cms.gre.ac.uk system for test purposes. The marking system will assume that the script will be processing three command line parameters, one for the first argument of arithmetic operation, the second command line parameter for the second argument of the arithmetic operations and third parameter expressing the arithmetic operation to be processed. Your script will be executed from the command line, for example, in order to check if your solution is correct it might be executed as: scriptname 4 2 "operation" The scriptcheck system will check if shading ipt returns appropriate results for each operation; for the example execution parameters (4 and 2) it should return: 42"16 The only thing your script is expected to return is a number corresponding to result of a given operation. Neither, runtime messages nor error messages should appear on the screen (you may need to re-direct the standard error stream for operations that might be source of any kind of error as "command 2>/devull")