I have a problem validating my script. The start of my script begins like this:

then after this i have all of my script and functions.

at the end i close the loop with this code:

What i want to know is, how do i make the loop so that only Yes or no can be an answer?

and if the wrong thing is entered how do i get an error message to appear?

How about doing a search using "while loop" and see what you can find ??

Try a select statement, like this

select action in "blabla" "blabla" "quit"
do
case $action in
"blabla")
somecommand
;;
.... for each possible command a $action
"quit")
break
;;
*)
print "this is not an option, try again"
;;
esac
done

have fun
gnom

ok i hate to sound like a complete lamen, but could you spell it out for me a bit better than that for me please. I am a complete beginner and dont really know much about it.

sorry to be a pain.

It's easier to understand when you format your code so that's more manageable to work with and read ...
The select statement reads the values after 'in' ... "blabla" "blabla" "quit" .
Then selects each one in turn and passes the value to $action to use within the select statement.
$action is used in the case statement, here the value is compared to those listed values contained within the case statement and if a match is made, executes the code attached to that match. If the value of $action doesn't match any value contained within the case statement, then it is passed to (or rather picked-up by) the statements associated with '*'.

Hope that ruff explaination is of some benefit.

Cheers,
Cameron

thanx cameron for the explanation

no probs gnom - I hope it's accurate - I don't remember the details, only the structure of it. So was kinda fluking it to put it into words.