Write a script called checkLetter. sh Review Greeting. sh 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".

The code is given as below: The input and output is as given for one case.

Explanation:

echo -e "Enter A, B or C : \c" #Printing the line on the screen

read -rN 1 test #read the character in the variable test

echo

case $test in #Setting up the case structure for variable test

[[:lower:]] ) #checking all lower case letters

echo You did not enter A, B or C;;

[D-Z] ) #checking upper case letters from D to Z

echo You did not enter A, B or C;;

A ) #Condition to check A

echo You entered A;;

B ) #Condition to check B

echo You entered B;;

C ) #Condition to check C

echo You entered C;;

esac #Exiting the case structure

answer would be

okay, so i know we just goofed around in that chat, but ive been like genuinly depressed, like medically depressed for almost 4 years now. i had my first panic attack when i was 8. i woke my mum up and told her i felt like i was in a dream. like i was a goldfish in a bowl, looking at all these things going on around me and feeling . tiny. wort hless. and i now am now 17 y/o. i still feel those emotions daily. life used to go by so quick.like every day i would wake up and just like want to go back to bed cause i always felt like i was in the wrong place. i guess looking back, i was in the wrong state of mind. i took a expensive like nice trip to whyoming with my grandfather and ha ted it. like idk why. i would have loved it now, but i found myself writing in a journal everyday because i would forget what happened the day before, couldnt remember what i ate for like the previous meal. just my memory left me for the week i was there. worst feeling ive ever experienced.