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Shell Programming and Scripting

getopts case statement failure

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# 1  
Old 11-27-2009
getopts case statement failure
Hi,

I have a getopts that works fine if I provide an option but I want it to exit if nothing is given, but for some reason it drops out and continues with the script. Any ideas?



Code:
while getopts d:m:y: o
do
        case $o in
                d) day=$OPTARG
                ;;
                m) month=$OPTARG
                ;;
                y) year=$OPTARG
                ;;
                :) echo "Option $OPTARG needs an argument"; usage
                ;;
                *) usage
                ;;
        esac

done


script_name.sh -d 25 -m Nov -y 09

Cheers and beers,
Neil
# 2  
Old 11-27-2009
Test the argument count :
Code:
if [ $# -eq 0 ]
then
        echo "No option!"
        usage      # Usage function must exit the script
fi

]while getopts d:m:y: o
do
        case $o in
                d) day=$OPTARG
                ;;
                m) month=$OPTARG
                ;;
                y) year=$OPTARG
                ;;
                :) echo "Option $OPTARG needs an argument"; usage
                ;;
                *) usage
                ;;
        esac

done

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