script 两则

script1:

PATH=/usr/local/bin:/usr/bin:$PATH:.

. $HOME/utility/macro/macro.env

OVO_DIR=/tmp

LOGFILE=$REPORT_DIR/chk_conn.log_`date '+%y%m%d'` MAILLOG=$TMP_DIR/chk_conn.log_`date '+%y%m%d%H%M'` tmpfile=$TMP_DIR/chk_conn.tmp1

OVOLOG=$OVO_DIR/chk_conn.log OVOSMY=$OVO_DIR/chk_conn_smy.log

db_list="test" err_dblst="" sname=yidbmon

EMAIL_LST=$ADMIN_DIR/email.tst #EMAIL_LST=$ADMIN_DIR/email.lst

mail_flag=N WAIT_TIME=$1

rm $OVOLOG

touch $tmpfile $OVOLOG for db_name in ${db_list} do                 # 2b. Check whether connection is OK or not

                $ORACLE_HOME/bin/sqlplus -s oper/oper123@${db_name} @$SCRIPT_DIR/chk_conn.sql > $tmpfile 2>&1 &                 sleep ${WAIT_TIME}

                Msg=""                 dt1=`date '+%y/%m/%d %H:%M:%S'`                 dt2=`date '+%y%m%d%H%M%S'`

                grep -i $db_name"-" $tmpfile >/dev/null

                if [ $? -ne 0 ]; then                         mail_flag="Y"

                        echo "Unable to connect to database: " $db_name ".."${dt1} >> $MAILLOG

                        err_dblst=${err_dblst}" "$db_name"("${dt2}") "

                else                        

echo "Connect to database successfully: " $db_name ".."${dt1} >> $MAILLOG               

  fi

done

     echo " " >> $MAILLOG

grep -i "Unable to connect" $MAILLOG >> /dev/null

        if [ $? -eq 0 ]; then

         echo "Possible Causes:" >> $MAILLOG        

     echo "1. Scheduled shutdown." >> $MAILLOG         

   echo "2. Maybe the connection needs more than "${WAIT_TIME}" seconds to complete." >> $MAILLOG         

echo "3. Database or listener is not up and running." >> $MAILLOG         

echo "Actions:" >> $MAILLOG         

echo "1. Please ignore this message if it is a scheduled shutdown." >> $MAILLOG         

echo "2. Otherwise run program /macro/chk_db.sh to check database services on yictngd3 & yictngd4." >> $MAILLOG        

  echo " " >> $MAILLOG

         sed -e 's/$/   /g' $MAILLOG  >$tmpfile         

       cp $tmpfile   $MAILLOG

               for iname in `cat $EMAIL_LST`             

        do                   /bin/mailx -s "Failed to connect to database " $iname < $MAILLOG                 done        

else                       

  rm -f $tmpfile      

   fi

if [ "${err_dblst}" != "" ];

then        

echo "critical Unable to connect to db : "${err_dblst}"

Check Email or log "${OVOLOG}" on server "$sname > $OVOLOG fi

cat $MAILLOG >> $LOGFILE cat $OVOLOG >> $OVOSMY

chmod 777 $OVOLOG

rm -f $MAILLOG $tmpfile

script2:

yidbmon1:/home/oracle [statdb] >more ./monitor/ngtools/se/se.sh

#! /bin/ksh

BASEDIR=/home/oracle/monitor/ngtools/se #

FILENAME=/home/oracle/monitor/ngtools/se/log/se.log FILENAME=/database/log/se_log/se_nGenpr.log

FIRSTFILTER=50

SECFILTER=30

PATH=/usr/local/bin:$PATH

ORACLE_SID=statdb

ORAENV_ASK=NO

. oraenv > /dev/null 2>&1

touch $FILENAME

#linecnt_bef=`wc -l $FILENAME| cut -f 1 -d ' '`

wc -l $FILENAME| read linecnt_bef other

while [ 1 = 1 ]

do clear

( sqlplus oper/oper123@nGenpr << SEEOF

@se_nGenpr.sql

SEEOF ) | grep '||' | tee -a $FILENAME

#linecnt_aft=`wc -l $FILENAME| cut -f 1 -d ' '`

wc -l $FILENAME| read linecnt_aft other

if [ $linecnt_aft -lt $linecnt_bef ]

then   

linecnt_bef=0

fi

DIFF=`expr $linecnt_aft - $linecnt_bef`

################################################################################################################# # By Hilda, 17.July.2007 - to check se.log if the ora-4031 flagged to client connection #################################################################################################################    ERR4031=`tail -$DIFF $FILENAME | grep -i "ORA-04031" | wc -l`    if [ $ERR4031 -gt 0 ]  

  then      /usr/bin/mailx -s "nGenpr: ORA-4031 Shared Pool Memory (Client connect from se.log)"

ts-dba@test.com.cn  < /dev/null

    #########################################################################     # Alert set to OVO, then operation run flush_shared_pool.sh for hot fix #     ######################################################################### #    OVOHOST=192.168.16.193

#    OVOUSER=ovusr

#    OPCMsgCmd=/opt/OV/bin/OpC/opcmsg

#    msg_text="nGenpr: ORA-4031 Shared Pool Memory (Client connect from se.log),

pls run flush_shared_pool.sh for hot fix"

#    remsh $OVOHOST -l $OVOUSER "$OPCMsgCmd severity=critical msg_grp=oracle application=oracle object=oracle msg_t=""$msg_text"""

   fi #################################################################################################################

if [ $DIFF -gt $FIRSTFILTER ]

then # HP specific command =>   TMPFILE=`mktemp -c -d /tmp`   

touch /tmp/se.tmp ;

TMPFILE=/tmp/se.tmp

# HP specific command =>   tail -l$DIFF $FILENAME > $TMPFILE  

  tail -$DIFF $FILENAME > $TMPFILE   

DIFF2=`grep -v "transaction allocation" $TMPFILE |grep -v "--------" | grep -v "sequential read"|grep -v "rdbms ipc message"|grep -v "latch free"|grep -v "log file sync " | grep -v "[Q]" | wc -l ` #   DIFF2=`expr $DIFF2 * 2 - $DIFF` #  

echo $DIFF2   

if [ $DIFF2 -gt $SECFILTER ]   

then     

echo "mail" #     /usr/bin/mailx -s "TOO many session wait in Database $ORACLE_SID ($DIFF2)" ts-dba@test.com.cn < $TMPFILE  

  fi   

rm $TMPFILE

fi

linecnt_bef=$linecnt_aft

sleep 10

done

yidbmon1:/home/oracle [statdb] >

 ########debug ora-4031

1. REM srdc_db_ora4031sp.sql - Collect information for ORA-4031 analysis on shared pool
   define SRDCNAME='DB_ORA4031SP'
   SET MARKUP HTML ON PREFORMAT ON
   set TERMOUT off FEEDBACK off VERIFY off TRIMSPOOL on HEADING off
   COLUMN SRDCSPOOLNAME NOPRINT NEW_VALUE SRDCSPOOLNAME
   select 'SRDC_'||upper('&&SRDCNAME')||'_'||upper(instance_name)||'_'||
   to_char(sysdate,'YYYYMMDD_HH24MISS') SRDCSPOOLNAME from v$instance;
   set TERMOUT on MARKUP html preformat on
   REM
   spool &SRDCSPOOLNAME..htm
   select '+----------------------------------------------------+' from dual
   union all
   select '| Diagnostic-Name: '||'&&SRDCNAME' from dual
   union all
   select '| Timestamp: '||
   to_char(systimestamp,'YYYY-MM-DD HH24:MI:SS TZH:TZM') from dual
   union all
   select '| Machine: '||host_name from v$instance
   union all
   select '| Version: '||version from v$instance
   union all
   select '| DBName: '||name from v$database
   union all
   select '| Instance: '||instance_name from v$instance
   union all
   select '+----------------------------------------------------+' from dual
   /
   set HEADING on MARKUP html preformat off
   REM === -- end of standard header -- ===
   REM
   SET PAGESIZE 9999
   SET LINESIZE 256
   SET TRIMOUT ON
   SET TRIMSPOOL ON
   COL 'Total Shared Pool Usage' FORMAT 99999999999999999999999
   COL bytes FORMAT 999999999999999
   COL current_size FORMAT 999999999999999
   COL name FORMAT A40
   COL value FORMAT A20
   ALTER SESSION SET nls_date_format='DD-MON-YYYY HH24:MI:SS';

   SET MARKUP HTML ON PREFORMAT ON

   /* Database identification */
   SET HEADING OFF
   SELECT '**************************************************************************************************************' FROM dual
   UNION ALL
   SELECT 'Database identification:' FROM dual
   UNION ALL
   SELECT '**************************************************************************************************************' FROM dual;
   SET HEADING ON
   SELECT name, platform_id, database_role FROM v$database;
   SELECT * FROM v$version WHERE banner LIKE 'Oracle Database%';

   /* Current instance parameter values */
   SET HEADING OFF
   SELECT '**************************************************************************************************************' FROM dual
   UNION ALL
   SELECT 'Current instance parameter values:' FROM dual
   UNION ALL
   SELECT '**************************************************************************************************************' FROM dual;
   SET HEADING ON
   SELECT n.ksppinm name, v.KSPPSTVL value
   FROM x$ksppi n, x$ksppsv v
   WHERE n.indx = v.indx
   AND (n.ksppinm LIKE '%shared_pool%' OR n.ksppinm IN ('_kghdsidx_count', '_ksmg_granule_size', '_memory_imm_mode_without_autosga'))
   ORDER BY 1;

   /* Current memory settings */
   SET HEADING OFF
   SELECT '**************************************************************************************************************' FROM dual
   UNION ALL
   SELECT 'Current instance parameter values:' FROM dual
   UNION ALL
   SELECT '**************************************************************************************************************' FROM dual;
   SET HEADING ON
   SELECT component, current_size FROM v$sga_dynamic_components;

   /* Memory resizing operations */
   SET HEADING OFF
   SELECT '**************************************************************************************************************' FROM dual
   UNION ALL
   SELECT 'Memory resizing operations:' FROM dual
   UNION ALL
   SELECT '**************************************************************************************************************' FROM dual;
   SET HEADING ON
   SELECT start_time, end_time, component, oper_type, oper_mode, initial_size, target_size, final_size, status
   FROM v$sga_resize_ops
   ORDER BY 1, 2;

   /* Historical memory resizing operations */
   SET HEADING OFF
   SELECT '**************************************************************************************************************' FROM dual
   UNION ALL
   SELECT 'Historical memory resizing operations:' FROM dual
   UNION ALL
   SELECT '**************************************************************************************************************' FROM dual;
   SET HEADING ON
   SELECT start_time, end_time, component, oper_type, oper_mode, initial_size, target_size, final_size, status
   FROM dba_hist_memory_resize_ops
   ORDER BY 1, 2;

   /* Shared pool 4031 information */
   SET HEADING OFF
   SELECT '**************************************************************************************************************' FROM dual
   UNION ALL
   SELECT 'Shared pool 4031 information:' FROM dual
   UNION ALL
   SELECT '**************************************************************************************************************' FROM dual;
   SET HEADING ON
   SELECT request_failures, last_failure_size FROM v$shared_pool_reserved;

   /* Shared pool reserved 4031 information */
   SET HEADING OFF
   SELECT '**************************************************************************************************************' FROM dual
   UNION ALL
   SELECT 'Shared pool reserved 4031 information:' FROM dual
   UNION ALL
   SELECT '**************************************************************************************************************' FROM dual;
   SET HEADING ON
   SELECT requests, request_misses, free_space, avg_free_size, free_count, max_free_size FROM v$shared_pool_reserved;

   /* Shared pool memory allocations by size */
   SET HEADING OFF
   SELECT '**************************************************************************************************************' FROM dual
   UNION ALL
   SELECT 'Shared pool memory allocations by size:' FROM dual
   UNION ALL
   SELECT '**************************************************************************************************************' FROM dual;
   SET HEADING ON
   SELECT name, bytes FROM v$sgastat WHERE pool = 'shared pool' AND (bytes > 999999 OR name = 'free memory') ORDER BY bytes DESC;

   /* Total shared pool usage */
   SET HEADING OFF
   SELECT '**************************************************************************************************************' FROM dual
   UNION ALL
   SELECT 'Total shared pool usage:' FROM dual
   UNION ALL
   SELECT '**************************************************************************************************************' FROM dual;
   SET HEADING ON
   SELECT SUM(bytes) "Total Shared Pool Usage" FROM v$sgastat WHERE pool = 'shared pool' AND name != 'free memory';

   /* Cursor sharability problems */
   /* This version is for >= 10g; for <= 9i substitute ss.kglhdpar for ss.address!!!! */
   SET HEADING OFF
   SELECT '**************************************************************************************************************' FROM dual
   UNION ALL
   SELECT 'Cursor sharability problems (this version is for >= 10g; for <= 9i substitute ss.kglhdpar for ss.address!!!!):' FROM dual
   UNION ALL
   SELECT '**************************************************************************************************************' FROM dual;
   SET HEADING ON
   SELECT sa.sql_text,sa.version_count,ss.*
   FROM v$sqlarea sa,v$sql_shared_cursor ss
   WHERE sa.address=ss.address AND sa.version_count > 50
   ORDER BY sa.version_count ;

   SPOOL OFF
   EXIT

   Log in to the database using SQL*Plus.
2. Connect as the SYSDBA user.
3. Download the attached srdc_db_ora4031sp.sql script. 
4. Run the srdc_db_ora4031sp.sql script while saving output to a spool file:
   
   SQL> connect / as sysdba
   
   SQL> @srdc_db_ora4031sp.sql
   
5. Review the output and provide the spool file to Support as necessary.

-----说明：

算术运算符指的是可以在程序中实现加、减、乘、除等数学运算的运算符。Shell中常用的数学运算符如下所示。

— +：对两个变量做加法。

— -：对两个变量做减法。

— *：对两个变量做乘法。

— /：对两个变量做除法。

— **：对两个变量做幂运算。

— %：取模运算，第一个变量除以第二个变量求余数。

— +=：加等于，在自身基础上加第二个变量。

— -=：减等于，在第一个变量的基础上减去第二个变量。

— *=：乘等于，在第一个变量的基础上乘以第二个变量。

— /=：除等于，在第一个变量的基础上除以第二个变量。

— %=：取模赋值，第一个变量对第二个变量取模运算，再赋值给第一个变量。

注意：将需要运算的表达式写入在expr 后面，保证参数与运算符号中间有空格隔开。

var=1
var=`expr $var + 1`
echo $var

output：
2

https://www.cnblogs.com/yfanqiu/archive/2012/05/10/2494031.html