mysqldump 備份數據庫腳本

#!/bin/bash

 

export PATH=/bin:/usr/bin:/usr/local/bin

TODAY=`date + "%d%b%Y" `

 

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

################## Update below values  ########################

 

DB_BACKUP_PATH= '/backup/dbbackup'  #先創建該目錄

MYSQL_HOST= 'localhost'

MYSQL_PORT= '3306'

MYSQL_USER= 'root'

MYSQL_PASSWORD= '密碼'

DATABASE_NAME=‘數據庫名'

BACKUP_RETAIN_DAYS=15   ## Number of days to keep local backup copy

 

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

 

mkdir -p ${DB_BACKUP_PATH}/${TODAY}

echo "Backup started for database - ${DATABASE_NAME}"

 

 

mysqldump -h ${MYSQL_HOST} \

           -P ${MYSQL_PORT} \

           -u ${MYSQL_USER} \

           -p${MYSQL_PASSWORD} \

           ${DATABASE_NAME} | gzip > ${DB_BACKUP_PATH}/${TODAY}/${DATABASE_NAME}-${TODAY}.sql.gz

 

if [ $? -eq 0 ]; then

   echo "Database backup successfully completed"

else

   echo "Error found during backup"

fi

 

 

##### Remove backups older than {BACKUP_RETAIN_DAYS} days  #####

 

DBDELDATE=`date + "%d%b%Y" --date= "${BACKUP_RETAIN_DAYS} days ago" `

 

if [ ! -z ${DB_BACKUP_PATH} ]; then

       cd ${DB_BACKUP_PATH}

       if [ ! -z ${DBDELDATE} ] && [ -d ${DBDELDATE} ]; then

             rm -rf ${DBDELDATE}

       fi

fi

 

### End of script ####