Daily Database backup using Cron Job

问题:

Hi i want to take database backup at daily mid night using cron job... and the name of database backup should append with current date... the format of backup file should be mydata_yyyy_mm_dd.sql ... backup file should be placed in /root directory

回答1:

something like

0 0 * * * /path/to/mysqldump ... > /path/to/backup/mydata_$( date +"%Y_%m_%d" ).sql

should work.

Please read

• man date
• man 5 crontab

回答2:

Create a cron.sh file with this content:

 mysqldump -u root -p{PASSWORD} DBNAME 2>> "/filename_`date '+%Y-%m-%d'`.sql"

And give the Read permission or full access permission for that cron.sh file.

and add this line into crontab file ($ crontab -e)

 0 0 * * *   cron.sh