Shell Programming and Scripting

function validate_file
{
    ERROR=0
    OIFS="$IFS"
    IFS="|"
    while read LINE
    do
        set -- $LINE
        LINE_HEAD="$1"
        shift
        case $LINE_HEAD in
            ${FIRST_LEVEL_COUNT}|${SECOND_LEVEL_COUNT})
                if [ $# -ne $LINE_HEAD ]
                then
                    ERROR=1
                    break 2
                fi
                ;;
            *)
                ERROR=1
                break 2
                ;;
        esac
    done < $1
    IFS="$IFS"
    if [ $ERROR -ne 0 ]
    then
        return 7
    fi
}

validate_file $FILE

awk -F\| '($1=="00" && NF!=5) || ($1=="01" && NF!=4) {exit 7}' file1