Mysql automatic backup script in linux

Source: Internet
Author: User
Tags mysql host mysql automatic backup mysql login
Mysql automatic backup script bitsCN.com in linux

Put the script in/home/user/mysql_backup.sh

Crontab

# Crontab-l

# M h dom mon dow command

28 16 ***/home/user/mysql_backup.sh

The script is as follows:

#! /Bin/sh

# Mysql_backup.sh: backup mysql databases and keep newest 5 days backup.

#

# Last updated: 20 march2006

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

# This is a free shell script under gnu gpl version 2.0 or above

# Copyright (C) 2006 Sam Tang

# Feedback/comment/suggestions: http://www.real-blog.com/

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

# Your mysql login information

# Db_user is mysql username

# Db_passwd is mysql password

# Db_host is mysql host

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

Db_user = "root"

Db_passwd = "password"

Db_host = "localhost"

# The directory for story your backup file.

Backup_dir = "/home/mybackup"

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

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

# Mysql, mysqldump and some other bins path

MYSQL = "/usr/local/mysql/bin/mysql"

MYSQLDUMP = "/usr/local/mysql/bin/mysqldump"

MKDIR = "/bin/mkdir"

RM = "/bin/rm"

MV = "/bin/mv"

GZIP = "/bin/gzip"

# Check the directory for store backup is writeable

Test! -W $ backup_dir & echo "Error: $ backup_dir is un-writeable." & exit 0

# The directory for story the newest backup

Test! -D "$ backup_dir/backup.0/" & $ MKDIR "$ backup_dir/backup.0 /"

# Get all databases

All_db = "$ ($ MYSQL-u $ db_user-h $ db_host-p $ db_passwd-Bse show databases )"

For db in $ all_db

Do

$ MYSQLDUMP-u $ db_user-h $ db_host-p $ db_passwd $ db | $ GZIP-9> "$ backup_dir/backup.0/snapshot"

Done

# Delete the oldest backup

Test-d "$ backup_dir/backup.5/" & $ RM-rf "$ backup_dir/backup.5"

# Rotate backup directory

For int in 4 3 2 1 0

Do

If (test-d "$ backup_dir"/backup. "$ int ")

Then

Next_int = 'expr $ int + 1'

$ MV "$ backup_dir"/backup. "$ int" "$ backup_dir"/backup. "$ next_int"

Fi

Done

Exit 0;

Note:

Mysql runs as a mysql User and cannot be written to/home/mybackup.

Chmod 777/home/mybackup solved

BitsCN.com

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