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1. Create a backup.sh file using command - vi backup.sh

2. On the vim, editor screen enter the command for database backup and to delete files older than 30 days

   Code Block
   mysqldump -u<user> -p<password> --single-transaction --skip-lock-tables --routines database name | gzip > /backup directory path/OPENSPECIMEN_`date +\%d-\%m-\%Y`.SQL.gz find /home/daily-database-backup/ -mtime +30 -exec rm {} \;

   
   

3. Create a cron job with the command:  crontab -e

4. This will open a crontab (cron configuration file) and the format of the job should be as follows.

   minute hour day-of-month month day-of-week <path to the backup.sh file>

   This is an example file to take database backup nightly every day at 11:59
   

   Code Block
   59 23 * * * /home/backup.sh

   
   

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