#!/bin/bash
# Shell script to backup MySql database
# To backup MySQL databases file to /backup dir and later pick up by your
# script. You can skip few databases from backup too.
# For more info please see (Installation info):
# http://www.cyberciti.biz/nixcraft/vivek/blogger/2005/01/mysql-backup-script.html
# Last updated: Aug - 2005
# --------------------------------------------------------------------
# This is a free shell script under GNU GPL version 2.0 or above
# Copyright (C) 2004, 2005 nixCraft project
# Feedback/comment/suggestions : http://cyberciti.biz/fb/
# -------------------------------------------------------------------------
# This script is part of nixCraft shell script collection (NSSC)
# Visit http://bash.cyberciti.biz/ for more information.
# -------------------------------------------------------------------------
MyUSER="dbdump"     # USERNAME
MyPASS="changeME"       # PASSWORD
MyHOST="localhost"          # Hostname
  
# Linux bin paths, change this if it can not be autodetected via which command
MYSQL="$(which mysql)"
MYSQLDUMP="$(which mysqldump)"
CHOWN="$(which chown)"
CHMOD="$(which chmod)"
GZIP="$(which gzip)"
 
# Get hostname
HOST="$(hostname)"
  
# Backup Dest directory, change this if you have someother location
DEST="/backup/"
  
# Main directory where backup will be stored
MBD="$DEST/$HOST"
  
# Get data in dd-mm-yyyy format
NOW="$(date +"%d-%m-%Y")"
  
# File to store current backup file
FILE=""
# Store list of databases
DBS=""
  
# DO NOT BACKUP these databases
IGGY="test information_schema lost+found"
 
[ ! -d $MBD ] && mkdir -p $MBD || :
dayofmonth=`date '+%d'`
 
# Get all database list first
DBS="$($MYSQL -u $MyUSER -h $MyHOST -p$MyPASS -Bse 'show databases')"
  
for db in $DBS
do
    skipdb=-1
    if [ "$IGGY" != "" ];
    then
      for i in $IGGY
      do
        [ "$db" == "$i" ] && skipdb=1 || :
      done
    fi
  
    if [ "$skipdb" == "-1" ] ; then
      FILE="$MBD/$db.$dayofmonth.gz"
      # do all inone job in pipe,
      # connect to mysql using mysqldump for select mysql database
      # and pipe it out to gz file in backup dir :)
         $MYSQLDUMP --single-transaction -u $MyUSER -h $MyHOST -p$MyPASS $db | $GZIP -9 > $FILE
    fi
done