mysql 自动备份脚本. 自动保存7天

#!/bin/sh

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

#auth:lrm

#date:20120816

#database  backup

db_user="root"

db_passwd="123456"

db_host="localhost"

db_name1="1"

db_name2="2"

db_name3="3"

db_name4="4"

# the directory for story your backup file.

backup_dir="/data/xixi_bak/mysql_backup/"

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

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

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

# mysql, mysqldump and some other bin's path

MYSQL="$(which mysql)"

MYSQLDUMP="$(which mysqldump)"

MKDIR="$(which mkdir)"

RM="$(which rm)"

MV="$(which mv)"

GZIP="$(which gzip)"

$MYSQLDUMP -u $db_user -h $db_host -p$db_passwd $db_name1 --default-character-set=utf8 --opt -Q -R --skip-lock-tables | $GZIP -9 > "$backup_dir/$time.$db_name1.gz"

$MYSQLDUMP -u $db_user -h $db_host -p$db_passwd $db_name2 --default-character-set=utf8 --opt -Q -R --skip-lock-tables | $GZIP -9 > "$backup_dir/$time.$db_name2.gz"

$MYSQLDUMP -u $db_user -h $db_host -p$db_passwd $db_name3 --default-character-set=utf8 --opt -Q -R --skip-lock-tables | $GZIP -9 > "$backup_dir/$time.$db_name3.gz"

$MYSQLDUMP -u $db_user -h $db_host -p$db_passwd $db_name4 --default-character-set=utf8 --opt -Q -R --skip-lock-tables | $GZIP -9 > "$backup_dir/$time.$db_name4.gz"

find /data/xixi_bak/mysql_backup/ -mtime +7 -type f | xargs rm -rf