mysql备份脚本

mysql备份脚本且只保留5天（已经经过测试）

#!/bin/bash

#mysql_bask.sh: backup mysql databases and keep newst 5 days backup.

#------------------------------------------

db_user="root"

db_passwd="123456"

db_host="localhost"

#the directory for story your backup file.

backup_dir="/back"

#date format for backup file (dd-mm-yy)

time="$(date +"%d-%m-%Y")"

#mysql,mysldump and some other bin's path

MYSQL="$(which mysql)"

MYSQLDUMP="$(which mysqldump)"

MKDIR="$(which mkdir)"

RM="$(which rm)"

MV="$(which mv)"

GZIP="$(which gzip)"

#check the directory for store backup is writeable

test ! -w $backup_dir && echo "Error:$backup_dir is un-writeable." && exit 0

#the directory for story the newest backup

test ! -d "$backup_dir" &&$MKDIR "$backup_dir"

#get all databases

#$MYSQLDUMP -u$db_user -h $db_host -p$db_passwd -A --events | $GZIP -9 > "$backup_dir/$time.$db.gz"

#each libaray separately backup

all_db="$($MYSQL -u $db_user -h$db_host -p$db_passwd -Bse 'show databases')"

for db in $all_db

do

$MYSQLDUMP -u$db_user -h $db_host -p$db_passwd $db |$GZIP -9 > "$backup_dir/$time.$db.gz"

done

#delete the oldest backup 30days age

find $backup_dir -name "*.gz" -mtime +30 | xargs rm -rf

exit 0;

本文转自 zhuxtqw 51CTO博客，原文链接：http://blog.51cto.com/1054054/1703243，如需转载请自行联系原作者