Who created the file ^- on user home directory

[neil al]

Hi Avi,

do you have any custom start-up or login scripts that run?
- I don't have any custom start-up or login scripts on my system. For login
scripts, where should I find it?

Thanks

On Sun, Feb 17, 2013 at 9:59 PM, Avi Greenbury <lists at avi.co> wrote:

> neil al wrote:
> > Any idea why is it everytime I boot. There is a file name ^- on my user
> home
> > directory?
>
> It doesn't sound like anything 'standard'; do you have any custom
> start-up or login scripts that run? The timestamp of the file may give
> some indication as to at what point during boot it started.
>
> If you make the file immutable, it will cause whatever tries to write
> that file to fail to, which may trigger an error (if it only writes
> the file if it doesn't find it, this wont work). On an ext filesystem
> (which is the default in Ubuntu) you can make a file immutable by
> doing
>
>     sudo chattr +i <file name>
>
> in a terminal. I've just tested with that filename and it seems to
> work without any quote marks or escaping, which is nice. You'll be
> able to test that this has worked with lsattr:
>
>     avi at amazing:~$ sudo chattr +i ^-
>     [sudo] password for avi:
>     avi at amazing:~$ lsattr ^-
>     ----i--------e-- ^-
>     avi at amazing:~$
>
> that 'i' means that the file is immutable. You can make it mutable
> again by doing
>
>     sudo chattr -i <file name>
>
> which removes that i:
>
>     avi at amazing:~$ sudo chattr -i ^-
>     avi at amazing:~$ lsattr ^-
>     -------------e-- ^-
>     avi at amazing:~$
>
> and puts that back to how it was before. Setting the file immutable is
> essentially to make it read-onl, but because you're doing it in the
> filesytem it cannot be easily overriden by root. If a file is set such
> that nobody may write to it, according to the posix permissions (i.e.
> chmod 000 ./file) root may still write to it; with the filesystem
> attributes root may only write to it if it first renders it mutable
> again.
>
> --
> Avi
>
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