What is the best way to make automated daily backup of MySQL databases and have these backups rotated on a 3 days interval basis?
To be exact, here is what I need to do:
1- Backup Database db_X at 1AM EST into db_X_02_07_13.sql with being todays date.
2- Next day Backup Database db_X at 1AM EST into db_X_02_08_13.sql and Delete the db_X_02_05_13.sql
so that we are keeping total of 3 backups of each DB
I assume the best way to do this is via Crontabs. But just not clear about the exact command for above 2 Steps process.
I have a similar bash script on a linux box via cron. I have subdirectories for day 1,2,3 in the backup directory, and when the script runs it rsync's the files from 2 to 3 subdirectories, then rsync's from 1 to 2. The script then cleans out directory 1 and runs mysqldump saving to 1. This gives me 3 days worth of backups, current, yesterday, and day-before yesterday copies.
So what is the actual command that you are using on the Cron?
And how do you direct the MySQL dump output to Dir1 vs Dir2 etc.?
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