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SubjectRe: Strange behavior observed w.r.t 'su' command
Andreas Schwab wrote:

>mru@kth.se (Måns Rullgård) writes:
>
>
>
>>It appears that my su exec()s the shell, whereas the redhat and gentoo
>>su fork() and exec().
>>
>>
>
>Yes, your su probably does not support PAM.
>
>Andreas.
>
>
>
But why is it that after 'su - root', running 'ps' shows 'su' as a
separate process, whereas, 'su - otheruser' and then 'ps' does not show
'su' in the process list ??
In plain words, why does this happen only for su to root ?

/Raj


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