一、所谓标准系统服务，应该是满足以下几条标准的后台运行程序。
1) 用chkconfig --add来安装，用chkconfig --list检查状态。
2) 用ntsysv来定制某个服务，是否伴随机器的启动而自动启动。
3) 在图形模式下，可以用serviceconf来启动、停止、重启服务。
4) 开机象系统服务那样显示starting，关机显示shutting down。
二、下面是具体的dbora脚本，在Redhat 7.3上通过，本人已经验证了几十次，保证能运行。
备注：启动lsnrctl的时候不用su- 而使用su，否则失败，并且要求使用Oracle用户本身的BASH_ENV.脚本开头的几个ORA_xxx参数都要依照实际情况写，否则会说找不到Oracle程序或者pid.DOS格式方便发文，拷下来后请大家用UltraEdit转为Unix格式。
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代码:
#!/bin/bash
#
# /etc/rc.d/init.d/dbora
#
# Starts the dbora daemon
#
# chkconfig: 345 94 6
# description: Runs commands scheduled by the at command at the time
# specified when at was run, and runs batch commands when the load
# average is low enough.
# processname: dbora
#
# copyright: Written by Wwashington AT smth bbs, free to distribute.
# You must keep everything in this file, including the copyright
# announcement. Study demo: atd & postgresql in /etc/rc.d/init.d
# Source function library.
INITD=/etc/rc.d/init.d
. $INITD/functions
# Source system profile.
if [ -r /etc/profile ] ; then . /etc/profile ; fi
ORA_SID=udb01
ORA_USER=oracle
ORA_BASE=/udb01/app/oracle
ORA_HOME=/udb01/app/oracle/prodUCt/8.1.7
BASH_ENV=$ORA_BASE/.bashrc
test -x $ORA_HOME/bin/dbstart exit 0
RETVAL=0
GREP_UNIX=`uname awk '{if($1 ~ /(^SunOS^HP-UX)/) print $1}'`
if ! [ "$GREP_UNIX" = "" ]
then
GREP_FLAG=ef
else
GREP_FLAG=efw
fi
RUNLEVEL=`runlevel awk '{ print $2 }'`
# RUNLEVEL=6
case "$RUNLEVEL" in
3)
SH_FLAG=1
;;
4)
SH_FLAG=1
;;
5)
SH_FLAG=1
;;
*)
SH_FLAG=0
;;
esac
# Below is a debug info to display Show Flag
# echo RUNLEVEL=$RUNLEVEL , SH_FLAG=$SH_FLAG
#
# See how we were called.
#
prog="dbora"
start() {
# Check flag, if dbora already started, quit dbora
if [ ! -f /var/lock/subsys/dbora ]; then
echo -n $"Starting $prog: "
# This is the background exec which can work under
# both CLI (dbora) and GUI mode (serviceconf). We
# must forward stderr to a file or null, otherwise
# dbora won't start with a return code in GUI mode
echo ""
echo "[oralog] ----->"
echo "Starting Oracle8i: "
echo "-------------------------------------------------------------------------"
# Please note that forward stderr(2) to /dev/null or &- means close stderr
su - $ORA_USER -c "$ORA_HOME/bin/dbstart > /tmp/ORA-dbuplog" 2>/dev/null
if [ $SH_FLAG -eq 1 ]; then
cat /tmp/ORA-dbuplog
fi
echo
echo "Starting TNS Listener:"
echo "-------------------------------------------------------------------------"
su $ORA_USER -c "$ORACLE_HOME/bin/lsnrctl start > /tmp/ORA-lsnrlog" 2>&-
if [ $SH_FLAG -eq 1 ]; then
cat /tmp/ORA-lsnrlog
fi
pid=`pidof -s ora_pmon_$ORA_SID`
if [ "$pid" == "" ]; then
RETVAL=1;
else
RETVAL=0;
fi
[ $RETVAL -eq 0 ] && touch /var/lock/subsys/dbora
echo
fi
return $RETVAL
}
stop() {
echo -n $"Stopping $prog: "
# In order to use database local cmd to keep safe,
# we use dbshut instead of simply kill ora_ proc.
# When we reboot (runlevel = 0 or 6), no verbose.
# Force remove /var/lock/subsys/dbora to activate
if [ $SH_FLAG -eq 1 ]; then
echo ""
echo "[oralog] ----->"
echo "Shutting down TNS Listener:"
echo "-------------------------------------------------------------------------"
su $ORA_USER -c "$ORACLE_HOME/bin/lsnrctl stop"
else
su $ORA_USER -c "$ORACLE_HOME/bin/lsnrctl stop > /dev/null"
fi
if [ $SH_FLAG -eq 1 ]; then
echo
fi
if [ $SH_FLAG -eq 1 ]; then
echo "Shutting down Oracle8i: "
echo "-------------------------------------------------------------------------"
su - $ORA_USER -c "$ORA_HOME/bin/dbshut"
else
su - $ORA_USER -c "$ORA_HOME/bin/dbshut > /dev/null"
fi
pid=`ps -$GREP_FLAG grep -e ora_ -e lsnr grep -v grep awk '{ print $2 }'`
# Show pids when shutdown failed, to see debug info
# echo $pid
if [ $pid ]; then
failure ""
else
success ""
fi
echo ""
rm -f /var/lock/subsys/dbora
return $RETVAL
}
restart() {
echo "Restarting Oracle8i and Listener: "
echo "========================================================================="
stop
start
}
reload() {
restart
}
status_ol() {
echo "Checking Oracle8i and Listener: "
echo "========================================================================="
su - $ORA_USER -c "$ORA_HOME/bin/dbstat"
}
case "$1" in
start)
start
;;
stop)
stop
;;
reloadrestart)
restart
;;
condrestart)
if [ -f /var/lock/subsys/dbora ]; then
restart
fi
;;
status)
status_ol
;;
*)
echo $"Usage: $0 {startstoprestartcondrestartstatus}"
exit 1
esac
exit $?
exit $RETVAL
刚才的文件是 /etc/rc.d/init.d/dbora，现在补充一个，$ORACLE_HOME/bin/dbstat
GREP_UNIX=`uname awk '{if($1 ~ /(^SunOS^HP-UX)/) print $1}'`
if !
[ "$GREP_UNIX" = "" ]
then
GREP_FILE=/usr/XPg4/bin/grep
GREP_FLAG=ef
else
GREP_FILE=/bin/grep
GREP_FLAG=efw
fi
echo
echo "# ps -$GREP_FLAG $GREP_FILE -e ora_ -e lsnr grep -v grep"
echo
ps -$GREP_FLAG $GREP_FILE -e ora_ -e lsnr grep -v grep
echo
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