[Nottingham] *nix most dangerous command line commands...

[Roger Light]

For those not aware of it, "rm -I" gives a reasonable compromise between
bare rm and "rm -i"

Cheers,

Roger
On Jun 14, 2014 11:59 AM, "Robert Mitchelmore" <psxrem at nottingham.ac.uk>
wrote:

> This is a terrible idea, but an entertaining one.
>
> $ mkdir foo
> $ cd foo
> $ touch -- -i
> $ touch importantstuff
> $ rm -rf *
> remove importantstuff? n
> $
>
> --
>
> Rob Mitchelmore
> Ph.D student and Man of Many Hats
> Horizon Doctoral Training Centre, University of Nottingham NG8 1BB
>
> http://jamesjoycewaskorean.com | http://twitter.com/kerastion
>
>
> ________________________________________
> From: nottingham-bounces at mailman.lug.org.uk [
> nottingham-bounces at mailman.lug.org.uk] On Behalf Of RICHARD SMEDLEY [
> smedley358 at btinternet.com]
> Sent: 13 June 2014 17:05
> To: Notts GNU/Linux Users Group
> Subject: Re: [Nottingham] *nix most dangerous command line commands...
>
> > Many moons ago, I was on a customer site logged in
> > as root and mistyped the cd location I wanted to go
> > to, then not realising I was still in the / directory, I
> > then typed
>
> > rm -r *
>
> > End of operating system......
>
>
> The classic tale of recovering from this comes from Manchester:
> http://www.ee.ryerson.ca:8080/~elf/hack/recovery.html
>
>  - Richard
>
> --
> @RichardSmedley
>
>
>
>
>
>
>
>
>
>
>
>
> On 12 Jun 2014, at 12:01, Martin <martin at ml1.co.uk> wrote:
>
> > OK folks,
> >
> > I'll start the bits rolling with the question of how much damage can you
> > do to a Linux system as root with just one mistyped or missed character
> > on the command line?
> >
> >
> > My little gem for alarm is:
> >
> > cat >>to_append_text_to_config_file
> >
> > ...and using ">" create/overwrite rather than ">>" append...
> >
> > !
> >
> >
> > Similarly, using "whatever_command 2>&1 | tee -a append_to_log_file" and
> > forgetting the "-a"...
> >
> >
> > Other good one's for "ouch" that others trip over?
> >
> > Can commands be made 'defensively' 'safer'?
> >
> > Cheers,
> > Martin
> >
> > --
> > - ------------------ - ----------------------------------------
> > -    Martin Lomas    - OpenPGP (GPG/PGP) Public Key: 0xCEE1D3B7
> > - martin @ ml1 co uk - Import from   hkp://subkeys.pgp.net   or
> > - ------------------ - http:// ml1 .co .uk/martin_ml1_co_uk.gpg
> >
> > _______________________________________________
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>
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