Скрипт на bash для резервного копирования MySQL

Порой лучшее решение — не тратить время на создание чего-то нового, а воспользоваться уже готовым решением. С радостью поделюсь с вами скриптом от tleish, который превосходно справляется с задачей резервного копирования баз данных.

#!/bin/bash
#==============================================================================
#TITLE:            mysql_backup.sh
#DESCRIPTION:      script for automating the daily mysql backups on development computer
#AUTHOR:           tleish
#DATE:             2013-12-20
#VERSION:          0.4
#USAGE:            ./mysql_backup.sh
#CRON:
  # example cron for daily db backup @ 9:15 am
  # min  hr mday month wday command
  # 15   9  *    *     *    /Users/[your user name]/scripts/mysql_backup.sh
 
#

#RESTORE FROM BACKUP
  #$ gunzip < [backupfile.sql.gz] | mysql -u [uname] -p[pass] [dbname]

#==============================================================================
# CUSTOM SETTINGS
#==============================================================================

# directory to put the backup files
BACKUP_DIR=/backup/MySQL

# MYSQL Parameters
MYSQL_UNAME=UserMySQL
MYSQL_PWORD="BasePassword"

# Don't backup databases with these names 
# Example: starts with mysql (^mysql) or ends with _schema (_schema$)
IGNORE_DB="(^mysql|_schema$)"

# include mysql and mysqldump binaries for cron bash user
PATH=$PATH:/usr/bin/mysql

# Number of days to keep backups
KEEP_BACKUPS_FOR=30 #days

#==============================================================================
# METHODS
#==============================================================================

# YYYY-MM-DD
TIMESTAMP=$(date +%F)

function delete_old_backups()
{
  echo "Deleting $BACKUP_DIR/*.sql.gz older than $KEEP_BACKUPS_FOR days"
  find $BACKUP_DIR -type f -name "*.sql.gz" -mtime +$KEEP_BACKUPS_FOR -exec rm {} \;
}

function mysql_login() {
  local mysql_login="-u $MYSQL_UNAME" 
  if [ -n "$MYSQL_PWORD" ]; then
    local mysql_login+=" -p$MYSQL_PWORD" 
  fi
  echo $mysql_login
}

function database_list() {
  local show_databases_sql="SHOW DATABASES WHERE `Database` NOT REGEXP '$IGNORE_DB'"
  echo $(mysql $(mysql_login) -e "$show_databases_sql"|awk -F " " '{if (NR!=1) print $1}')
}

function echo_status(){
  printf '\r'; 
  printf ' %0.s' {0..100} 
  printf '\r'; 
  printf "$1"'\r'
}

function backup_database(){
    backup_file="$BACKUP_DIR/$TIMESTAMP.$database.sql.gz" 
    output+="$database => $backup_file\n"
    echo_status "...backing up $count of $total databases: $database"
    $(mysqldump $(mysql_login) $database | gzip -9 > $backup_file)
}

function backup_databases(){
  local databases=$(database_list)
  local total=$(echo $databases | wc -w | xargs)
  local output=""
  local count=1
  for database in $databases; do
    backup_database
    local count=$((count+1))
  done
  echo -ne $output | column -t
}

function hr(){
  printf '=%.0s' {1..100}
  printf "\n"
}

#==============================================================================
# RUN SCRIPT
#==============================================================================
delete_old_backups
hr
backup_databases
hr
printf "All backed up!\n\n"

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#!/bin/bash

#==============================================================================

#TITLE: mysql_backup.sh

#DESCRIPTION: script for automating the daily mysql backups on development computer

#AUTHOR: tleish

#DATE: 2013-12-20

#VERSION: 0.4

#USAGE: ./mysql_backup.sh

#CRON:

# example cron for daily db backup @ 9:15 am

# min hr mday month wday command

# 15 9 * * * /Users/[your user name]/scripts/mysql_backup.sh

#RESTORE FROM BACKUP

#$ gunzip < [backupfile.sql.gz] | mysql -u [uname] -p[pass] [dbname]

#==============================================================================

# CUSTOM SETTINGS

#==============================================================================

# directory to put the backup files

BACKUP_DIR=/backup/MySQL

# MYSQL Parameters

MYSQL_UNAME=UserMySQL

MYSQL_PWORD="BasePassword"

# Don't backup databases with these names

# Example: starts with mysql (^mysql) or ends with _schema (_schema$)

IGNORE_DB="(^mysql|_schema$)"

# include mysql and mysqldump binaries for cron bash user

PATH=$PATH:/usr/bin/mysql

# Number of days to keep backups

KEEP_BACKUPS_FOR=30 #days

#==============================================================================

# METHODS

#==============================================================================

# YYYY-MM-DD

TIMESTAMP=$(date +%F)

function delete_old_backups()

{

echo "Deleting $BACKUP_DIR/*.sql.gz older than $KEEP_BACKUPS_FOR days"

find $BACKUP_DIR -type f -name "*.sql.gz" -mtime +$KEEP_BACKUPS_FOR -exec rm {} \;

}

function mysql_login() {

local mysql_login="-u $MYSQL_UNAME"

if [ -n "$MYSQL_PWORD" ]; then

local mysql_login+=" -p$MYSQL_PWORD"

echo $mysql_login

}

function database_list() {

local show_databases_sql="SHOW DATABASES WHERE `Database` NOT REGEXP '$IGNORE_DB'"

echo $(mysql $(mysql_login) -e "$show_databases_sql"|awk -F " " '{if (NR!=1) print $1}')

}

function echo_status(){

printf '\r';

printf ' %0.s' {0..100}

printf '\r';

printf "$1"'\r'

}

function backup_database(){

backup_file="$BACKUP_DIR/$TIMESTAMP.$database.sql.gz"

output+="$database => $backup_file\n"

echo_status "...backing up $count of $total databases: $database"

$(mysqldump $(mysql_login) $database | gzip -9 > $backup_file)

}

function backup_databases(){

local databases=$(database_list)

local total=$(echo $databases | wc -w | xargs)

local output=""

local count=1

for database in $databases; do

backup_database

local count=$((count+1))

done

echo -ne $output | column -t

}

function hr(){

printf '=%.0s' {1..100}

printf "\n"

}

#==============================================================================

# RUN SCRIPT

#==============================================================================

delete_old_backups

backup_databases

printf "All backed up!\n\n"

Ссылка на оригинал: https://gist.github.com/tleish/1c6e788c84f59200446b

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