Re: C-k keystroke kills the subtree

[Ian Barton <lists@wilkesley.net>]

> I'm using org-mode for a several months and recently a sad thing 
> happened with me. I suddenly found that a subtree where I look into 
> rather rarely, but the information there is quite important, 
> disappeared. Obviously I have stroked C-k while the point was located on 
> the collapsed tree, and whole my tree disappeared and I did not even 
> noticed that. When I found there is no subtree, it was already too late 
> to restore it: there was no such change in undo history and probably I 
> have removed that subtree in one of my previous emacs sessions.
> 
Dmitry,
I know this isn't much help in your present predicament, but I would 
suggest that you have a look at "Using Version Control with Your Org 
Files" at http://orgmode.org/worg/org-tutorials/index.php#sec-3.3 
(declaration of interest, I wrote it).

Using a VCS in conjunction with cron considerably mitigates the impact 
of such disasters. Provided you commit your changes frequently (e.g. 
with cron), you can  normally recover almost anything you deleted in error.

Ian.