Today we are going to explore how to back up your work in Linux. Linux has many different ways to back up your data but one of the best is to use the crontab file, so lets take a look.
Open up a terminal and type “su” and when prompted enter your root password. Next you want to open up the crontab file (think Task Scheduler in windows).
Next type “gedit /etc/crontab” in a terminal. The crontab file should look similar to the table below.
|1||9||*||*||*||Root||Tar -cvf/media/dev/sdb/backup.tar /home|
M = minutes
H = hours
Dom = every day in the month
Mon = every month
Dow = every day of week (e.g 1-5 would be Monday to Friday inclusive)
User = user who can perform this task
Command = what is getting backed up and where is it getting sent to
So in the above example I have backed up a folder called home (/home) to a folder called backup.tar which is on sdb (/dev/sdb/backup.tar) at 1 minute past 9 everyday in the month, every month. The authorised user is root and the command to be used is tar -cvf.
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