ERRORS REPORTED: mysqldump: Got error: 1142: SELECT,LOCK TABL command denied to user ‘root’@’localhost’ for table ‘cond_instances’ when using LOCK TABL

dbdump () {
        touch $2
        chmod 600 $2
        if [ $1 = "information_schema" ] ; then
                NEWOPT="--skip-opt ${OPT}"
        elif [ $1 = "performance_schema" ]; then
                NEWOPT="--skip-lock-tables --skip-opt ${OPT}"
        else
                NEWOPT="--opt $OPT"
        fi

        echo "${1} - ${NEWOPT}"

        if [ -z "${USERNAME}" -o -z "${PASSWORD}" ] ; then
                mysqldump --defaults-file=/etc/mysql/debian.cnf $NEWOPT $1 > $2
        else
                mysqldump --user=$USERNAME --password=$PASSWORD --host=$DBHOST $NEWOPT $1 > $2
        fi
        return 0
}