unix 服务器上可能有10多个数据库，可以用脚本批量启动，停止 ： start_all_dbs.sh， shutdown_all_dbs.sh.[@more@]*****************************************************************************************
start_all_dbs.sh
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#!/bin/ksh

ORATAB=/var/opt/oracle/oratab; export ORATAB
TEMP_DIR=/tmp ; export TEMP_DIR

function is_db_up
{
rm $TEMP_DIR/delme.log
sqlplus "/ as sysdba"<< EOF > $TEMP_DIR/delme.log
exit
EOF
export DB_UP=F
grep "ORA-01034" $TEMP_DIR/delme.log >> /dev/null
if [ $? -eq 0 ] ; then
DB_UP=F
fi
rm $TEMP_DIR/delme.log
}

function startupdb_sqlplus
{
echo calling sqlplus
# get path/names of all database files for this database
sqlplus "/ as sysdba" <startup
EXIT
EOF
}


SID_LIST=`awk -F: '/^[^#]/ {printf " %s ",$1} END {printf "n"}' $ORATAB`
for SID in `echo $SID_LIST`
do
export ORACLE_SID=$SID
is_db_up
if [ "$DB_UP" = "T" ]; then
echo "***************** $ORACLE_SID is up already - no need to startup"
else
echo "**************** Starting $SID $ORACLE_HOME "
startupdb_sqlplus
fi
#check_alert_log
done


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shutdown_all_dbs.sh
*****************************************************************************************


#!/bin/ksh

ORATAB=/var/opt/oracle/oratab; export ORATAB
TEMP_DIR=/tmp ; export TEMP_DIR


function shutdowndb_sqlplus
{
echo calling sqlplus
# get path/names of all database files for this database
sqlplus "/ as sysdba" <shutdown immediate
EXIT
EOF
}


SID_LIST=`awk -F: '/^[^#]/ {printf " %s ",$1} END {printf "n"}' $ORATAB`
for SID in `echo $SID_LIST`
do
export ORACLE_SID=$SID

shutdowndb_sqlplus

done