一、所謂標准系統服務，應該是滿足以下幾條標准的後台運行程序。
1) 用chkconfig --add來安裝，用chkconfig --list檢查狀態。
2) 用ntsysv來定制某個服務，是否伴隨機器的啟動而自動啟動。
3) 在圖形模式下，可以用serviceconf來啟動、停止、重啟服務。
4) 開機象系統服務那樣顯示starting，關機顯示shutting down。
二、下面是具體的dbora腳本，在Redhat 7.3上通過，本人已經驗證了幾十次，保證能運行。
備注：啟動lsnrctl的時候不用su- 而使用su，否則失敗，並且要求使用Oracle用戶本身的BASH_ENV.腳本開頭的幾個ORA_xxx參數都要依照實際情況寫，否則會說找不到Oracle程序或者pid.DOS格式方便發文，拷下來後請大家用UltraEdit轉為Unix格式。
------------------------------------------------------------------------
代碼:
#!/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
;;
reload|restart)
restart
;;
condrestart)
if [ -f /var/lock/subsys/dbora ]; then
restart
fi
;;
status)
status_ol
;;
*)
echo $"Usage: $0 {start|stop|restart|condrestart|status}"
exit 1
esac
exit $?
exit $RETVAL
剛才的文件是 /etc/rc.d/init.d/dbora，現在補充一個，$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
