Shell Programming and Scripting

Hi,
I am writing a menu driven Korn script where I am getting some input from the users (host details, like Hostname, HBA WWN, Devices etc...). I face a challenge when the number of input lines goes past my window size. For this reason, I am planning to use a part of the screen for user input, say from Row 30-40 with "tput cup 30 20 ". This way, I can get the user input for one host at a time and display only important information. Now, how do I clear the screen only from Row 30 to 40 for the next entry?
I tried something like tput cup 30 20 clear, but that doesn't work. I anyone has a script or know a way to do this, please share your knowledge. Your help is really appreciated.

You can use tput el to clear from current position to end of line.

So to define $CLEAR_HOST to clear a block from 30,10 to 40,10 you could do:

Code:

CL=$(tput el)
L=30
while [ $L -le 40 ]
do
    CLEAR_HOST="$CLEAR_HOST$(tput cup $L 10)$CL"
    let L=L+1
done

The just do printf "%s" $CLEAR_HOST whenever you want to clear the HOSt entry area.

You might also consider using the Shell CURSES library. See Shell Curses function library.

Thanks for clue, Chubler ..... "tput ed" is what I was looking for.