As simple as possible

Bash Script/shell script Please create each part in a separate file. 1) Create a positive numeric variable "N" and assigitsvalue as an integer of your choice. Create a script that makesthe user guess the value of the variable you createdN. The user should be informedif the number he/she entered is greater or less than N. The game stops if the user guesses the value or if he/she enters-1. 2) Write a script that takesthe measurement of the side of a square from the user, calculates the area and the perimeter of this square, and thenprints the results on the screen. 3) Using Case statement condition create a program thattakes2 integersfrom the user and askshim/her to choose one number accordingto the following .1 to add those nunbers 2 to subtractthose numbers . 3 to multiply those numbers - 4to divide those numbers For each case, the result should be printed on the screen. The program should repeat on taking a choice from the user until he/she enters-1 asa choice 4) Create a script that asks the user to enter the list of his/her favorite courses and then store the entered data in an array. Print the courses entered from the last entered to the first one entered using afar loop