Linux timed backup database

# You can put this script in/etc/crontab, 01 0 *** mysqlbackup. Sh
# Well, the system will automatically run the backup. Sh file to back up the MySQL database at every day.
# The automatic backup script can be executed only once a day, and only the backups of the last five days are retained on the server.
# Code:

#! /Bin/bash
# Setting
# Set the database name, database login name, password, backup path, Log Path, data file location, and backup mode
# By default, the backup method is mysqldump, mysqldump, or mysqldotcopy. If you comment out
# Line 18, which is backed up by TAG by default
# By default, log on to the MySQL database with root (empty) and back up to/root/dbxxxxx. tgz
Dbname = MySQL
Dbuser = root
Dbpasswd = 123456
Backuppath =/home/Wang/www/backup/MySQL/mysqlbackup
Logfile =/home/Wang/www/backup/MySQL/DB. Log
Dbpath =/var/lib/MySQL/
# Backupmethod = mysqldump
# Backupmethod = mysqlhotcopy
# Backupmethod = tar
# Setting end

Newfile = "$ backuppath" DB $ (date + % Y % m % d). tgz
Dumpfile = "$ backuppath" DB $ (date + % Y % m % d)
Oldfile = "$ backuppath" DB $ (date + % Y % m % d -- date = '5 days ago '). tgz
Echo "-----------------------------------------"> $ logfile
Echo $ (date + "% Y-% m-% d % H: % m: % s") >>$ logfile
Echo "--------------------------"> $ logfile
# Delete old file
If [-F $ oldfile]
Then
Rm-F $ oldfile >>$ logfile 2> & 1
Echo "[$ oldfile] delete old file success! ">>> $ Logfile
Else
Echo "[$ oldfile] No old backup file! ">>> $ Logfile
Fi
If [-F $ newfile]
Then
Echo "[$ newfile] the backup file is exists, can't backup! ">>> $ Logfile
Else
Case $ backupmethod in
Mysqldump *)
If [-Z $ dbpasswd]
Then
Mysqldump-U $ dbuser -- opt $ dbname> $ dumpfile
Else
Mysqldump-U $ dbuser-p $ dbpasswd -- opt $ dbname> $ dumpfile
Fi
Tar czvf $ newfile $ dumpfile >>$ logfile 2> & 1
Echo "[$ newfile] backup success! ">>> $ Logfile
Rm-RF $ dumpfile
;;
Mysqlhotcopy *)
Rm-RF $ dumpfile
Mkdir $ dumpfile
If [-Z $ dbpasswd]
Then
Mysqlhotcopy-U $ dbuser $ dbname $ dumpfile >>$ logfile 2> & 1
Else
Mysqlhotcopy-U $ dbuser-p $ dbpasswd $ dbname $ dumpfile >>$ logfile 2> & 1
Fi
Tar czvf $ newfile $ dumpfile >>$ logfile 2> & 1
Echo "[$ newfile] backup success! ">>> $ Logfile
Rm-RF $ dumpfile
;;
*)
/Etc/init. d/mysqld stop>/dev/null 2> & 1
Tar czvf $ newfile $ dbpath >>$ logfile 2> & 1
/Etc/init. d/mysqld Start>/dev/null 2> & 1
Echo "[$ newfile] backup success! ">>> $ Logfile
;;
Esac
Fi
Echo "-------------------------------------------"
Echo

# Lftp-F lftp. Sh if FTP is available, it can be uploaded to FTP at the same time.

 

 

Use the crontab command to generate the/var/spool/cron/root file.

 

Crontab-E (an editing window will be opened. The first line will contain a message in the content format. Enter the command here)

 

M h Dom mon Dow command (specific meaning: minute Hour Date month week command, in a month (Mon) One day (DOM) or the day of the day (Dow) (H, in a 24-hour system), a fraction (m) executes a command ))

 

For example, 10 02 ***/home/backup/autobackupmysql. Sh (indicates that the backup script is executed at 02:10 a.m)