hi all

06-02-2008

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hi all

i need a help how do i validate that a given field is not blank ie it should not go to the next field when i press enter.

Last edited by din_annauniv; 06-02-2008 at 02:01 AM..

din_annauniv

06-06-2008

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What do you mean by "field"? Something like this?

Code:

while true; do
  echo -n "Input your input: "
  read input
  case $input in "") echo "You lost. Play again";; *) break ;; esac
done

This will loop until the user enters non-blank input.

era

Shell Programming and Scripting