D&C GLug - Home Page

[ Date Index ] [ Thread Index ] [ <= Previous by date / thread ] [ Next by date / thread => ]

Re: [LUG] Doh!

 

Easy done eh,   I guess this highlights how powerful root users are, 

Of course this raises one point of how best to actually stop such a 
thing once it's started,  closing a terminal window is a good thing but 
what happens if you are running yakuake which seems to be in the 
background,  I can type a command,  click the desktop,  the window 
scrolls up but it's still running in the background  this is useful  but 
i guess highlights a potentual danger of using sudo or even su as I do.

Whats the best key combo to get out of this situation,  apart from 
hitting reset of course, which could end up doing more damage.

paul

h

Rob Beard wrote:

>Hi folks,
>
>I thought you guys might find this amusing.  It is a warning that even 
>running commands with sudo can be dangerous!
>
>I was trying to delete some files from my USB pen drive this morning.  
>For some funny reason I couldn't delete a couple of files out of the 
>Trash can (I'm running Ubuntu Edgy 6.10 Beta).  I figured, okay I 
>haven't got time to mess around so I opened up a terminal, changed to 
>the USB key directory and ran...
>
>rm -fr .Trash-Rob
>
>Great I thought, that's the trash emptied (it was complaining about a 
>permissions problem which I considered strange on a FAT formatted 
>device!).
>
>I then wanted to do something else in the terminal window, I think it 
>was checking the MD5SUMs of Ubuntu Edgy that I had downloaded.
>
>I entered cd / and pressed enter.  Unfortunately I think, I'd hit the 
>up arrow key a second before so I actually entered the command...
>
>rm -fr .Trash-Rob cd /
>
>Good old Ubuntu remembered my password on the sudo command as I'd 
>previously entered it a few seconds before.  Before I knew it I was 
>rm'ing everything from / downwards!
>
>Luckily I caught it in time (Ctrl-C didn't respond) so I closed the 
>terminal window.  I think it only deleted /bin /sbin /boot and /etc as 
>my data appears to be intact.  Not ideal as I'll have to reinstall but 
>still its not the end of the world I guess.  Just as well I downloaded 
>the Edgy ISO's now :-)
>
>So I guess the moral of the story is even when running sudo, think 
>before pressing Enter (or at least when using the rm command don't do 
>rm -fr!).
>
>Rob
>
>
>
>
>  
>


-- 
The Mailing List for the Devon & Cornwall LUG
http://mailman.dclug.org.uk/listinfo/list
FAQ: http://www.dcglug.org.uk/linux_adm/list-faq.html