Possible to create a full sd card backup to external drive?

[unabatedshagie]

Is it possible to have a scheduled task which runs every day at X time which would create an image backup of my pi sd card in the event I mess something up I have a backup to fall back on?

[Mike]

@manne helped guide someone on how to do this, maybe he'll chime in and link to the post which I can't seem to find.

[manne]

I think it was this one:
http://sysmatt.blogspot.se/2014/08/backu...r.html?m=1