Bash case statement

Question

I\'m trying to learn case as I was to write a fully functional script.

I\'m starting off with the below

#!/bin/sh
case $@ in

    -h|--help)
                 


        

Answer 1

Try this

#!/bin/sh

usage() {
    echo `basename $0`: ERROR: $* 1>&2
    echo usage: `basename $0` '[-a] [-b] [-c] 
        [file ...]' 1>&2
    exit 1
}


while :
do
    case "$1" in
    -a|-A) echo you picked A;;
    -b|-B) echo you picked B;;
    -c|-C) echo you picked C;;
    -*) usage "bad argument $1";;
    *) break;;
    esac
    shift
done