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mysqlhotcopy 正则使用小技巧_MySQL

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Release: 2016-06-01 13:22:17
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bitsCN.com mysqlhotcopy 是MySQL的热备工具,详细请看手册 ,为了安全起见我们给热备分配个用户:

grant select, reload, lock tables on *.* to 'hotcopy'@'localhost' identified by '123456';
如果我们只想热备其中的一部分数据就有可能用到正则了,使用 mysqlhotcopy --help可以看到它支持的选项,其中有:--regexp 这个正则是和数据库名匹配的,比如:备份以abc开头的库,可以使用:

mysqlhotcopy --flushlog -u='hotcopy' -p='123456' --regexp= ^abc /home/bak
备份以[a-d]开头的库,可以使用:

mysqlhotcopy --flushlog -u='hotcopy' -p='123456' --regexp=^[a-d] /home/bak
如果想备份某个数据库中的某些表的话,有可能要用到以下方法:

备份test库以abc开头的表:

mysqlhotcopy --flushlog -u='hotcopy' -p='123456' test./^abc/ /home/bak
备份test库除abc开头的表:

mysqlhotcopy --flushlog -u='hotcopy' -p='123456' test./~^abc/ /home/bak
备份test库以abc_a,abc_b,abc_c,abc_d,abc_e,......,abc_w开头的表:

mysqlhotcopy --flushlog -u='hotcopy' -p='123456' test./^/(abc_[a-w]/)/ /home/bakbitsCN.com

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