Re: prompt w/ uid 0 for cshrc
On Nov 19, 2012, at 8:46 AM, jb wrote: Eitan Adler lists at eitanadler.com writes: On 18 November 2012 18:44, Mateusz Guzik mjguzik at gmail.com wrote: Just take user name from id -nu. While that does provide the $user value I want, id is in /usr/bin/ which may not be mounted. /rescue/id Bad idea: * /rescue tools are not part of the standard world * /rescue tools are sometimes not installed * Quite a few people have customized the rescue tools to adding or omitting things suitable for their particular installation. * /rescue tools are not guaranteed to be functionally identical to the non-rescue versions. Better to invoke 'id' in a way that produces reasonable results if 'id' is unavailable. For example: /bin/sh -c 'id -nu 2/dev/null' || echo '?' prints '?' if the id command fails or is unavailable. Tim ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Re: prompt w/ uid 0 for cshrc
On 18 November 2012 18:44, Mateusz Guzik mjgu...@gmail.com wrote: Just take user name from id -nu. While that does provide the $user value I want, id is in /usr/bin/ which may not be mounted. Is there a builtin which provides similar functionality? -- Eitan Adler ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Re: prompt w/ uid 0 for cshrc
Eitan Adler lists at eitanadler.com writes: On 18 November 2012 18:44, Mateusz Guzik mjguzik at gmail.com wrote: Just take user name from id -nu. While that does provide the $user value I want, id is in /usr/bin/ which may not be mounted. /rescue/id jb ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Re: prompt w/ uid 0 for cshrc
On Mon, Nov 19, 2012 at 10:45:35AM -0500, Eitan Adler wrote: On 18 November 2012 18:44, Mateusz Guzik mjgu...@gmail.com wrote: Just take user name from id -nu. While that does provide the $user value I want, id is in /usr/bin/ which may not be mounted. Is there a builtin which provides similar functionality? Valid point, but should not happen a lot when unprivileged accounts are involved, so I suggest the following (pseudo-sh-code): if [ -x /usr/bin/id ]; then up=$(id -nu); else if [ $uid = 0 ]; then up=root; else up=($uid) fi -- Mateusz Guzik mjguzik gmail.com ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Re: prompt w/ uid 0 for cshrc
On 18 November 2012 18:32, Eitan Adler li...@eitanadler.com wrote: 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 was pointed in the right direction. I should use %N instead of %n. -- Eitan Adler ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
prompt w/ uid 0 for cshrc
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 ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Re: prompt w/ uid 0 for cshrc
On Sun, Nov 18, 2012 at 06:32:20PM -0500, Eitan Adler wrote: 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? Just take user name from id -nu. -- Mateusz Guzik mjguzik gmail.com ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
