`fold` command wrapper which performs text wrapping and optionally commenting

wrap.sh

#!/bin/sh

opts=""
comment=0
nocomment=0

while getopts bchsVw: opt; do
    case $opt in
        b)
            opts="$opts -b"
            ;;
        c)
            comment=1
            ;;
        h)
            opts="$opts --help"
            nocomment=1
            ;;
        s)
            opts="$opts -s"
            ;;
        V)
            opts="$opts --version"
            nocomment=1
            ;;
        w)
            opts="$opts -w $OPTARG"
            ;;
        \?)
            echo "Invalid option: -$OPTARG" >&2
            exit 1
            ;;
        :)
            echo "Option -$OPTARG requires an argument." >&2
            exit 1
            ;;          
    esac
done

shift $((OPTIND-1))

/usr/bin/fold -sw80 $opts "$@" | if [ ${comment}${nocomment} -eq 10 ]; then /usr/bin/awk '{print "# "$0;}'; else /bin/cat ; fi