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From: Eitan Adler <lists@eitanadler.com>
Date: Sun, 18 Nov 2012 18:32:20 -0500
Message-ID: <CAF6rxg=V4gbOKOfB+J-fzxHDjqducd8C7d7f1Oxz-UxbquVKeg@mail.gmail.com>
Subject: prompt w/ uid 0 for cshrc
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X-List-Received-Date: Sun, 18 Nov 2012 23:32:52 -0000

Hey,

at the moment the current default csh prompt looks like

user@hostname:directory% command

This leads to an unexpected[*] result when using su (without "-").

In particular the user part is *not* changed to "root" (or "toor" or
any other superuser indication) although the promptchar is changed to
"#".
This causes some confusion for new users and even some experienced ones.

I worked around this issue by including the following

        if ($uid == 0) then
                set user = root
        endif

which I'm not certain is a good idea.

I would like to replace this with logic like

if $uid = 0 AND $user != toor AND $user != root
  set user = "+$user"
endif

does anyone think this is a bad idea? can anyone propose a better
idea? Is the status quo okay?

I don't trust user education for this problem. I've seen way too many
people get confused to leave the default without some extra indicator.

[*] Okay, so this is expected if you understand the difference between
"su" and "su -" but the defaults are not aimed at people that
understand this difference.


-- 
Eitan Adler