#!/bin/sh    cmdname="restart"  # get oracle sid information from env by default.  oracleSID=${ORACLE_SID}  env_oracleSID=${ORACLE_SID}    function echohelp(){    echo "******oracled Tool Helper******"    echo "Usage:sh oracled [start|stop|restart] SIDs"    echo "SIDs : seperated by comma"    exit 5  }    function startoracle(){    echo "begin to start oracle ..."      lsnrctl start    for curSID in `echo ${oracleSID} | awk 'BEGIN {RS=","}{ORS="\n"}{print $1}'` ; do      if [ "x${curSID}" = "x" ] ; then        continue;      fi      export ORACLE_SID=${curSID}    sqlplus /nolog <<EOF    connect /as sysdba  startup  exit  exit    EOF        echo "oracle DB [${curSID}] started OK."    done  }  function stoporacle(){    echo "begin to stop oracle ..."      for curSID in `echo ${oracleSID} | awk 'BEGIN {RS=","}{ORS="\n"}{print $1}'` ; do      if [ "x${curSID}" = "x" ] ; then        continue;      fi      export ORACLE_SID=${curSID}    sqlplus /nolog <<EOF    connect /as sysdba  shutdown immediate  exit  exit    EOF        echo "oracle DB [${curSID}] stopped OK."    done    lsnrctl stop  }  function restartoracle(){    stoporacle    startoracle  }      if [ $# -lt 1 ] ; then    echohelp  fi    until [ $# -eq 0 ]  do    tmpVOrg=$1    tmpV=`echo "${tmpVOrg}" | awk '{printf "%s",$1}' | tr '[A-Z]' '[a-z]'`    if [ $tmpV = "start" -o $tmpV = "restart" -o $tmpV = "stop" ] ; then      cmdname=${tmpV}    elif [ $tmpV = "--help" -o $tmpV = "-h" ] ; then      echohelp    else      oracleSID=$tmpVOrg    fi      shift  done    if [ "x${cmdname}" = "x" ] ; then    echohelp  fi    ${cmdname}oracle    export ORACLE_SID=${env_oracleSID}