How to backup all the MySQL databases daily using Shell script/cron job.


How to take full MySQL backup daily using shell script ?


First we need to create the shell script on the server  and add below code in it. After creating the shell script. After this you can add this shell script to daily crons to perform daily backup automatically. You can directly put the above code in the daily cron for example :

vi /etc/cron.daily/

Here is the code :



# Simple script to backup MySQL databases

# Parent backup directory
# MySQL settings

mysql_password=$(cat /root/.my.cnf | grep pass | sed ‘s/^pass=//g’ | tr -d ‘\”‘)
mysql_password=$(cat /root/.my.cnf | grep pass | sed ‘s/^password=//g’ | tr -d ‘\”‘)

# Read MySQL password from stdin if empty
if [ -z “${mysql_password}” ]; then
echo -n “Enter MySQL ${mysql_user} password: ”
read -s mysql_password

# Check MySQL password
echo exit | mysql –user=${mysql_user} –password=${mysql_password} -B 2>/dev’/null
if [ “$?” -gt 0 ]; then
echo “MySQL ${mysql_user} password incorrect”
exit 1
echo “MySQL ${mysql_user} password correct.”

# Create backup directory and set permissions
backup_date=`date +%Y_%m_%d_%H_%M`
echo “Backup directory: ${backup_dir}”
mkdir -p “${backup_dir}”
chmod 700 “${backup_dir}”

# Get MySQL databases
mysql_databases=`echo ‘show databases’ | mysql –user=${mysql_user} –password=${mysql_password} -B | sed /^Database$/d`

# Backup and compress each database
for database in $mysql_databases
if [ “${database}” == “information_schema” ] || [ “${database}” == “performance_schema” ]; then
echo “Creating backup of \”${database}\” database”
mysqldump ${additional_mysqldump_params} –user=${mysql_user} –password=${mysql_password} ${database} | gzip > “${backup_dir}/${database}.gz”
chmod 600 “${backup_dir}/${database}.gz”



This will simply run your MySQL on daily basis and keeps your System updated in case of MySQL crash or requirement of Old Data.


In addition to this, to save the disk space you can remove old database backup by adding simple 2 lines to above code :


# Terminate old backup
find /home/backups/mysql/ -mtime +10 -exec rm -rf {} \;

This will delete the backup which is older than 10 days.

How to backup all the MySQL databases daily using Shell script/cron job., Hostripples Web Hosting
Vishwajit Kale
Vishwajit Kale blazed onto the digital marketing scene back in 2015 and is the digital marketing strategist of Hostripples, a company that aims to provide affordable web hosting solutions. Vishwajit is experienced in digital and content marketing along with SEO. He's fond of writing technology blogs, traveling and reading.
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