How to take MySQL backup using bin bash script Linux- Ubuntu, Centos, Redhat & send Email notification

MySQL Backup: - If you are using MySQL to store information that means you can't lose anything from that database. For every Administrator, It is required to take backup of MySQL Database.

Here I am going to demonstrate, How to schedule backup of MySQL databases using bash script and send Email notification.

Prerequisites: -

1- On Linux Machine installed MySQL Server

2- Root access for MySQL Server

3- One user with sudoers privileges for SSH

4- SMTP Server details

Step 1: - Create bash script and configure Backup destination

#--> User and host
MyUSER="root"           # USERNAME
MyPASS="*****"          # PASSWORD
MyHOST="localhost"      # Hostname
HOST="$hostname"
# Locations of binaries
MYSQL="$(which mysql)"
MYSQLDUMP="$(which mysqldump)"
GZIP="$(which gzip)"
#SMAIL="$(which sendEmail)"
SMAIL="$(which sendEmail)"

# Backup Dest directory, change this if you have someother location
DEST="/var/backup"
REPORT="/var/backup"
# Get data in dd-mm-yyyy format
NOW="$(date +"%m-%d-%Y")"

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

# Get hostname
HOST="$(hostname)"

# File to store current backup file
FILE=""
# Store list of databases
DBS=""

# DO NOT BACKUP these databases
IGNOREDBS="
mysql
information_schema
performance_schema
"
[ ! -d $MBD ] && mkdir -p $MBD || :

# Get all database list first
DBS="$($MYSQL -u $MyUSER -h $MyHOST -p$MyPASS -Bse 'show databases')"
#DBS="$($MYSQL -u $MyUSER -h $MyHOST -Bse 'show databases')"

for db in $DBS
do

skipdb=-1
    if [ "$IGNOREDBS" != "" ];
    then
        for i in $IGNOREDBS
        do
            [ "$db" == "$i" ] && skipdb=1 || :
        done
    fi

    if [ "$skipdb" == "-1" ] ; then
        FILE="$MBD/$db.$HOST.$NOW.sql.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 -u $MyUSER -h $MyHOST -p$MyPASS $db | $GZIP -9 > $FILE
        #$MYSQLDUMP -u $MyUSER -h $MyHOST $db | $GZIP -9 > $FILE
    fi

done

#--> Email Function
du -sh $MBD/* | cat > $REPORT/$NOW"Backup-report".txt
sendEmail -f "Backup Admin <user@domain.com>" -u "MySQL Backup" -m "Please review attached file" -t recipient@domain.com -s SMTP-HOST:PORT -a $REPORT/$NOW"Backup-report".txt

Copy above script and paste into a file and save as Mysql_backup.sh.
Step 2: - Make Script executable

chmod a+x Mysql_backup.sh

 Step 3: - Schedule backup script in Cron Job list to run on specific time.

crontab -e

# m h  dom mon dow   command
  0 2 * * *  /Path_to_Script/Mysql_backup.sh

The above Cron has been scheduled to run in Night at 2:00 AM.

MySQL Backup script has been configured successfully with Email notification.

If you want to install SendEmail utility then you can have a look at blog link below.

https://linuxhowtoguide.blogspot.ca/2017/08/install-sendemail-simple-smtp-client.html


Thank you so much for reading this blog!