example12.15

UNIX+shell范例精解（第4版）代码

read answer
if [[ $answer = [Yy]* ]]     # Test for Yes or yes or Y or y, etc.
then
  # ...
fi
guess=Noone
if [[ $guess != [Nn]o@(one|body) ]]        # Test for Noone, noone
then                                  # or Nobody, nobody...
  # ...
fi