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 <<EOF
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
