通过shell脚本自动增加mysql分区表的分区

http://blog.chinaunix.net/uid-411974-id-88397.html

#!/bin/sh

#

#

:<<BLOCK

######################################################################

SHELL_NAME：Logdb_Add_Partition.sh

  Functional Description：At the last month auto add the logdb table partition

    Argument：

            $1 USER Mysql Account

            $2 PASS Mysql Account Pass

            $3 DB        Mysql Logdb

    Version：V1.0

    Creater : SongYunkui
              Colin_Song

    Crete_time：2010/12/9

    Modify：1. MODIFY BY

            2. ADD BY ____ ___/__/__ Add:_________

######################################################################            

BLOCK

#######################################################################################

if [
$# -lt 3 ]; then

  echo "Please Input The Correct Args"

  echo "Usage Logdb_Add_Partition.sh <USER> <PASS> <DB>"

  exit -1

fi

USER=$1

PASS=$2

DB=$3

##config section begin

CONN_MYSQL="-u$USER -p$PASS -s"

MYSQL_HOME=/opt/modules/mysql

MYSQL_DIR=${MYSQL_HOME}/bin/mysql

SHELL_BASE=/opt/sbin/Logdb

LOG_DIR=${SHELL_BASE}/log

OPT_NAME=add_partition

MKDIR=`whereis
-b mkdir|awk
'{print $2}'`

TOUCH=`whereis
-b touch|awk
'{print $2}'`

DATE=`whereis
-b date|awk
'{print $2}'`

if [
! -d ${SHELL_BASE}
]

then

    ${MKDIR}
-p ${SHELL_BASE}

fi

if [
! -d ${LOG_DIR}
]

then

    ${MKDIR}
-p ${LOG_DIR}

fi

if [
! -d ${INI_DIR}
]

then

    ${MKDIR}
-p ${INI_DIR}

fi

LOG_FILE=${LOG_DIR}/${OPT_NAME}.log

#config section end

#working start

CURRENT_DATE=`${DATE}
+'%Y-%m-%d'`

echo "${CURRENT_DATE} everything is ok, runing start"
>>
${LOG_FILE}

#loop read the partition table and column

while read TAB_NAME COL_NAME

do

COUNTER=1

CURRENT_YEAR=`date
+%Y`

#check the next month

NEXT_MONTH=`date
-d next-month
+%m`

#check the next month has many days

case ${NEXT_MONTH} in

            1|01|3|03|5|05|7|07|8|08|10|12)

                                           CURRENT_DAY=31

            ;;

            4|04|6|06|9|09|11)

                              CURRENT_DAY=30

            ;;

            2|02)

                if
[ `expr ${CURRENT_YEAR}
% 4` -eq 0
]; then

                        if
[ `expr ${CURRENT_YEAR}
% 400` -eq 0
]; then

                                CURRENT_DAY=29

                        elif [ `expr
${CURRENT_YEAR}
% 100` -eq 0
]; then

                                CURRENT_DAY=28

                        else

                                CURRENT_DAY=29

                        fi

                else

                        CURRENT_DAY=28

                fi

             ;;

esac

#work start add the every day partition

while [
${COUNTER}
-le
${CURRENT_DAY}
]

do

#calculate the current day's next {counter} day

PATNAME_DATE=`date
-d "${COUNTER} days"
+%Y%m%d`

COUNTER=`expr
${COUNTER}
+ 1`

PAT_DATE=`date
-d "${COUNTER} days"
+%Y%m%d`

#change the unix_timestamp

PAT_UNIX_TIMESTAMP=`${MYSQL_DIR}
${CONN_MYSQL}
<<EOF

use ${DB};

select UNIX_TIMESTAMP('${PAT_DATE}');

EOF`

##add partition sql

V_SQL="ALTER TABLE ${DB}."${TAB_NAME}" ADD PARTITION
(PARTITION P"${PATNAME_DATE}" VALUES LESS THAN ("${PAT_UNIX_TIMESTAMP}"));"

echo $V_SQL

#exec the sql

${MYSQL_DIR}
${CONN_MYSQL}
<<EOF

use ${DB};

$V_SQL;

EOF

done

done<./Logdb_Partition.ini

#working end

END_DATE=`${DATE}
+'%Y-%m-%d %H:%M:%S'`

echo "${END_DATE} runing finished"
>> ${LOG_FILE}

echo -e "\n--------------------------------------------------------------------"
>>
${LOG_FILE}