#!/bin/bash

MyUSER=""     # USERNAME
MyPASS=""       # PASSWORD
MyHOST="localhost"          # Hostname

# Backup Dest directory, change this if you have someother location
DEST="/backup"

# Main directory where backup will be stored
MBD="$DEST/mysql"

mkdir -p "$MBD"

#creates a temporary directory and then after first command completes the 2nd removes it
tmpdir=$(mktemp -d /backup/tmpXXXXXX); trap 'rm -rf "$tmpdir"' EXIT;

# 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="information_schema"

# Only root can access it!
chown 0.0 -R "$DEST"
chmod 0700 "$DEST"

# 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 [ "$skipdb" == "-1" ] ; then
    FILE="$tmpdir/$db.$HOSTNAME.$NOW.sql"
    # do all inone job in pipe,
    # connect to mysql using mysqldump for select mysql database
    # and pipe it out to gz file in backup dir :)
        "$MYSQLDUMP" -u "$MyUSER" -h "$MyHOST" -p "$MyPASS" "$db" > "$FILE"
   fi
done

tar -zcf mysqlBackup."$NOW".tar.gz "$tmpdir"/*.sql