We all do backups. This note is about doing them on Ubuntu 12.04.


  • archive important folders
  • dump mysql databases
  • upload all to yandex.disk (online web storage with 10GB space)
  • delete old backups

I’ll save only backups for last five days.


There are many different backup tools, see wiki list. I’ve chosen DAR.

One can install it in Ubuntu 12.04 by typing

# apt-get install dar

It is a console utility and it can be confusing for beginner. Here is great short how-to with explanations.

I will perform full backups every day. For incremental ones read manual.

I need to backup /srv folder, so my command is:

dar -m 256 -z -s 600M -D -R /srv -c `date -I`_data -Z "*.gz" -Z "*.bz2" -Z "*.zip" -Z "*.png"

It creates file currentdate_data.X.dar, for example 2012-08-30_data.1.dar, with a backup. If archive is bigger than 600M (-s 600M), it splits in two slices. X in the filename represents slice number. For the full description read how-to.

Dumping MySQL

Dumping MySQL is performed by mysqldump utility. You can list your databases in MySQL by entering into console with

mysql -uroot -ppassword

and type there


I have drupal database I want to backup. So, I type:

mysqldump -u root -ppassword drupal > `date -I`_drupal.mysqldump

It creates file with all necessary stuff to create the same table from nothing.


Yandex.Disk can be accessed by WebDAV. Install vebdavfs2:

# apt-get install davfs2

Then edit /etc/davfs2/secrets. Just add line with address, login and password:

https://webdav.yandex.ru username@yandex.ru "userpass"

Now you cat mount yandex.disk as an ordinary drive to folder /mount/yandex:

mount -t davfs https://webdav.yandex.ru /media/yandex

Now it is possible to store backups in cloud.

Old files can be removed by:

rm `ls *.dar | head -n -5`

It leaves only last five backups.

Adding to cron

All commands from above in one script backup.sh:

mount -t davfs https://webdav.yandex.ru /media/yandex
cd /media/yandex/cudacer
dar -m 256 -z -s 600M -D -R /srv -c `date -I`_data -Z "*.gz" -Z "*.bz2" -Z "*.zip" -Z "*.png"
rm `ls *.dar | head -n -5`
mysqldump -u root -p<password> <dbname>l > `date -I`_drupal.mysqldump
rm `ls *.mysqldump | head -n -5`

Run it every day at 1am. Open cron tasks

# crontab -e

and paste there line:

 0 1 * * * /home/kenarius/backup.sh

Now you have backups.