通过shell脚本自动增加mysql分区表的分区

#!/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 : Colin_Song
    Crete_time：2010/12/8
    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

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

#config section end

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

CURRENT_DATE=`${DATE} +'%Y-%m-%d'`
echo "${CURRENT_DATE} everything is ok, runing start" >> ${LOG_FILE}

#working start

while read TAB_NAME COL_NAME
do

COUNTER=1
CURRENT_YEAR=`date +%Y`
NEXT_MONTH=`date -d next-month +%m`
echo ${NEXT_MONTH}
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
echo $CURRENT_DAY

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

do
PATNAME_DATE=`date -d "${COUNTER} days" +%Y%m%d`
COUNTER=`expr ${COUNTER} + 1`

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

PAT_UNIX_TIMESTAMP=`${MYSQL_DIR} ${CONN_MYSQL} <<EOF
use ${DB};
select UNIX_TIMESTAMP('${PAT_DATE}');
EOF`

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