近期公司有一个数据库需要迁移，但是里面创建的数据库比较多，我们采取脚本将库单独备份，然后上传到另一台主机，新建数据库，然后恢复数据库。将自己写的几个小脚本粘贴到此，
分库压缩备份
#/bin/sh
#version 0.1
MYUSER=mysqlback
MYPASS=databack@162.com
#SOCKET=/data/3306/mysql.sock
MYLOGIN="mysql -u$MYUSER -p$MYPASS "
MYDUMP="mysqldump -u$MYUSER -p$MYPASS -B"
DATABASE="$($MYLOGIN -e "show databases;"|egrep -vi "Data|_schema|mysql")" #正则
for dbname in $DATABASE
do
MYDIR=/data/backup/$dbname
[ ! -d $MYDIR ] && mkdir -p $MYDIR
$MYDUMP $dbname|gzip >$MYDIR/${dbname}_$(date +%F).sql.gz
done批量解压缩
#/bin/bash
for i in `ls *.gz`
do gunzip $i
done
解压结果：
wl_smsgate_2017-04-12.sql
wl_smsgate_hx_2017-04-12.sql
wl_smsgate_ldkj_2017-04-12.sql
wl_smsgate_tt_2017-04-12.sql
wl_smsgate_dg_2017-04-12.sql
wl_smsgate_jjbs_2017-04-12.sql
wl_smsgate_pc_2017-04-12.sql
wl_smsgate_tt_lt_2017-04-12.sql
wl_smsgate_dxfj_2017-04-12.sql
wl_smsgate_jl_2017-04-12.sql
wl_smsgate_sb_2017-04-12.sql批量创建数据库
#/bin/bash
#fun create database
mysqluser=root
mysqlpass=winnerlook123
mysqlcent="mysql -u $mysqluser -p$mysqlpass"
dabasename=`cat databasename`
date2="_2017-04-12.sql"
for data in $dabasename
do
$mysqlcent -e "create database if not exists $data default character set utf8"
done恢复数据
#/bin/bash
#fun create database
mysqluser=root
mysqlpass=winnerlook123
mysqlcent="mysql -u $mysqluser -p$mysqlpass"
dabasename=`cat databasename`
date2="_2017-04-12.sql"
for data in $dabasename
do
$mysqlcent -e "use $data " && $mysqlcent -e " source /tmp/backup/$data$date2 "#恢复数据
done 然后检查数据库的数据字符集以及其数据条数。
