Newsgroups: comp.unix.shell

> What's the best way to find out if a string has a certain letter in it?
> So when i assign var=ABCD i would like to check if this var has a
> letter B in it. How to do it ? (i can only think of a messy loop)

bourne shell :

case $var in
*B*)    echo found ;;
*)      echo not found ;;
esac

korn shell (same as the bourne shell + ) :

if [[ $var = *B* ]]; then
        echo found
else
        echo not found
fi

Cyrille.

documented on: 2000.08.28 Mon 21:44:34