Shell Programming and Scripting

Hi,
can anyone help me with my scrip please. I wanted do following tasks:
1. List all the directory

2. A STDIN to ask user to enter a directory name from listed directories

3. command to check if the directory exists( or a command to validate if the user entered a valid directory name)

4. if it is a valid directory name, exit with a text message: your directory is found".

5. if it is not found, display error message" directory not foun, please enter a valid directory name". also keep prompting user until he/she enters a valid dir name

Thanks in advance.

what have you got?

this is what I have done so far,

#!/bin/bash
find . -type d
echo -e "Please Enter A Directory name :"
read dir
if[ -d $dir]
then
echo Directory found
else
echo Directory not found, please enter a valid directory name

use a while loop to go over and over again. See loops for more information. and read the document.