[R] Ubunut + Eclipse + StatET: Console terminates upon error

(Ted Harding) Ted.Harding at manchester.ac.uk
Thu Mar 11 20:42:49 CET 2010


On 11-Mar-10 19:19:26, Janko Thyson wrote:
> [...]
> First of, I'm still confused about Ubuntu's "sudo" way of doing things.
> Not knowing how to authorize me as "root" when installing packages from
> a R-script, I can't write on "/usr/local/lib/R/site-library" or
> "/usr/lib/R/site-library".

On this particular point: If, logged in as a user (whatever user
you are), you enter the command into a terminal window:

  su -

and then enter the root password when prompted, you will be logged
in as root -- fair and square, and no nonsense. You will also be
placed in root's home directory as well (not that of the user you
previously were).

Thereafter, you can do whatever you are used to doing as root.

However, becoming root in the above way limits you to root access
solely from the terminal window that you used for "su -" (though
you could do the same in more than one terminal). All other windows,
and the desktop itself, remain under the influence of the original
user.

The only way to take over an entire session as root would be to
shut down the session (choosing "Restart"), and then log in as
root at the initial login window for the new session. Then you
would have to shut that down too when you wanted to resume normal
life!

Ted.

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Date: 11-Mar-10                                       Time: 19:42:46
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