Intro to Unix class. We are using puTTy to code this.

Write a script called checkLetter.sh Review Greetingsh for an example Use a read statement and ask user to "Enter A, B, or C: If user types A, echo "You entered A" If user types B, echo " You entered B" If user types C, echo " You entered C" Use the case structure to test the user's string If user types any letter from lower case 'a through z' or upper case 'D through Z', echo "You did not enter A, B, or C