Linux Shell daemon/RAC Restart script

To establish a daemon process:

#! /bin/sh  PRO_NAME=./xxxx.sh while true ; do       #用ps获取$PRO_NAME进程数量       echo ‘‘> nohup.out     NUM=`ps aux | grep -w ${PRO_NAME} | grep -v grep |wc -l`       #echo $NUM       #少于1，重启进程       if [ "${NUM}" -lt "1" ];then           echo "${PRO_NAME} was killed"           ${PRO_NAME} -d      #大于1，杀掉所有进程，重启      elif [ "${NUM}" -gt "1" ];then          echo "more than 1 ${PRO_NAME},killall ${PRO_NAME}"           killall -9 $PRO_NAME          ${PRO_NAME} -d       fi       #kill僵尸进程       NUM_STAT=`ps aux | grep -w ${PRO_NAME} | grep T | grep -v grep | wc -l`       if [ "${NUM_STAT}" -gt "0" ];then           killall -9 ${PRO_NAME}           ${PRO_NAME} -d      fi       sleep 5s   done   exit 0

Create a script that restarts db (for RAC use only), purely for convenience:

#!/bin/bashif [ $1 ]then{db_name=$1srvctl stop database -d $db_name -o abortnum=`ps -ef|grep -i smon_|grep -v grep|grep -v -i asm|awk ‘{print $2}‘ `if [ ! $num ]thenecho "database restart........."fiwhile [ "$num" ]dosleep 1num=`ps -ef|grep -i smon_|grep -v grep|grep -v -i asm |awk ‘{ print $2  }‘`echo "database not shutdown ,please check!" donesrvctl start database -d $1num=`ps -ef|grep -i smon_|grep -v grep|grep -v -i asm |awk ‘{ print $2 } ‘`if [ $num ]thenecho "database starting "fiif [ ! -n "$num" ]thenecho "start fail"elseecho  "start sucessfully"fi}elseecho "No parameter ,eg: ./stop_db.sh dbname"fi

Linux Shell daemon/RAC Restart script