Question

MySQL转储备份文件包含以下行...

# head -40 backup20-Apr-2010-07-32.sql | grep 'CHANGE MASTER TO '
-- CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin.000068', MASTER_LOG_POS=176357756;

a）我需要使用Master host，user和password等参数完成语句。

b）我还需要删除评论“ - ”

该行应该看起来像这样...

CHANGE MASTER TO MASTER_HOST='111.222.333.444', MASTER_USER='slave_user', MASTER_PASSWORD='slave_user', MASTER_LOG_FILE='mysql-bin.000068', MASTER_LOG_POS=176357756;

Answer 1

  head -40 backup20-Apr-2010-07-32.sql |
  grep 'CHANGE MASTER TO ' |
  perl -lpe "s/-- CHANGE MASTER TO/CHANGE MASTER TO MASTER_HOST='111.222.333.444', MASTER_USER='slave_user', MASTER_PASSWORD='slave_user',/"

Answer 2

head -40 ORS20-Apr-2010-07-32.sql | grep 'CHANGE MASTER TO ' | sed 's/CHANGE MASTER TO/CHANGE MASTER TO MASTER_HOST='111.222.333.444', MASTER_USER='slave_user', MASTER_PASSWORD='slave_user'/g' | sed 's/^--//g'

这是正确的方法吗？

Answer 3

#!/bin/bash

s="MASTER_HOST='111.222.333.444', MASTER_USER='slave_user',"
awk -vs="$s" ' /-- CHANGE MASTER TO/{
  gsub("-- CHANGE MASTER TO","CHANGE MASTER TO "s)
}1 ' file >temp
mv temp file

替换该行以添加一些文本

3 个答案: