文本格式：

#!/bin/bash

#Author:wangergui Email:291131893@qq.com Date:2016-10-10

#Release 1.0

#Function: check oracle online

declare -a INSTANCE=(PROD EMREP)

[[ -f /home/oracle/.bash_profile ]] && . /home/oracle/.bash_profile || exit 3

function check_listener (){

su - oracle -c "lsnrctl status" >/dev/null 2>&1

if [[ $? -ne 0 ]];then 

su - oracle -c "lsnrctl start" >/dev/null 2>&1

[[ $? -ne 0 ]] && echo -e "\E[40;31;5m Your listener is Down!\E[0m"

fi

}

check_listener

function check_oracle (){

for name in "${INSTANCE[@]}";do

(su - oracle <

sqlplus sys/tiger@${name} as sysdba 

select status from v\$instance;

quit;

EOF

) >/home/oracle/${name}.txt

egrep -q "OPEN" /home/oracle/${name}.txt 

[[ $? -ne 0 ]] && echo -e "\E[40;31;5m Oracle ${name} is Down!\E[0m"

done

}

check_oracle