linux 如何开机自动运行sh脚本

vi /etc/rc.d/rc.local
#自动启动oracle
echo 502 >/proc/sys/vm/hugetlb_shm_group
su - oracle -c 'sh /data/oradata/oracle/startdb.sh'
source /etc/rc.d/rc.local

startdb.sh

#!/bin/sh

sqlplus /nolog <<EOF
connect / as sysdba;
startup;
EOF

lsnrctl start

shutdb.sh

#!/bin/sh

lsnrctl stop

sqlplus /nolog <<EOF
connect / as sysdba;
shutdown transactional;
EOF