Detailed explanation of the idea of ​​using mysqldump+expect+crontab to implement mysql periodic cold backup in linux

#!/bin/bash

mysql_username=$1
backup_databases=$2
backup_path=$3

mysqldump -u ${mysql_username} -p --databases ${backup_databases} > ${backup_path}

#!/usr/bin/expect

set timeout 5

#Set local information set mysql_username [lindex $argv 0] 
set backup_database [lindex $argv 1] 
set backup_path [lindex $argv 2] 

#utils path set utils_path /home/hadoop/backup_script/utils

spawn bash ${utils_path}/backup.sh ${mysql_username} ${backup_database} ${backup_path}


expect {
	"*assword*" {send "nimabidecao1\r"} #Enter password}
expect eof

#!/bin/bash

#The data here can be written as mysql_username=root
backup_databases=school
backup_path=$HOME/backup_data/${backup_databases}.sql

#Run the expect script expect $HOME/backup_script/single_cold_backup/single_cold_backup_service.exp ${mysql_username} ${backup_databases} ${backup_path}

0 9 * * 1 bash /home/hadoop/backup_script/single_cold_backup/single_cold_backup_driver.sh

#!/bin/bash

local_backup_path=$1
another_user=$2
another_ip=$3
another_backup_path=$4

scp ${local_backup_path} ${another_user}@${another_ip}:${another_backup_path}

#!/usr/bin/expect

set timeout 5

#Host information set mysql_username [lindex $argv 0] 
set backup_database [lindex $argv 1] 
set backup_path [lindex $argv 2] 

#Slave information set slave_user [lindex $argv 3]
set slave_ip [lindex $argv 4]
set slave_backup_path [lindex $argv 5]

#utils path set utils_path /home/hadoop/backup_script/utils


spawn bash ${utils_path}/backup.sh ${mysql_username} ${backup_database} ${backup_path}

expect {
	"*assword*" {send "nimabidecao1\r"} #Enter password}

spawn bash ${utils_path}/scp.sh ${backup_path} ${slave_user} ${slave_ip} ${slave_backup_path}

expect {
  "*assword*" {send "nimabidecao1\r"} #Enter password}

expect eof

#!/bin/bash

#Local machine information mysql_username=root
backup_databases=school
backup_path=$HOME/backup_data/${backup_databases}.sql

#Slave information slave_user=meizhaowei
slave_ip=172.20.10.14
slave_backup_path=backup_data/doule_cold_backup_data/${backup_databases}.sql


#Execute write absolute path expect $HOME/backup_script/double_cold_backup/double_cold_backup_service.exp ${mysql_username} ${backup_databases} ${backup_path} ${slave_user} ${slave_ip} ${slave_backup_path}

0 9 * * 1 bash /home/hadoop/backup_script/double_cold_backup/double_cold_backup_driver.sh