From owner-freebsd-questions  Tue May 14  5:29:12 2002
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Subject: su and the ``-c'' option.
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Date: Tue, 14 May 2002 14:28:51 +0200
From: "Chris J. Mutter" <cjm@terminal.sil.at>
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hi,

why is the ``-c'' (execute command) option of the ``su'' needed when i want
to execute a command as a different user? and why is this option not in the
manpage (its only found in the EXAMPLES section of su(1)): 

     su [-] [-Kflm] [-c class] [login [args]]

i find it a bit confusing that there is also a ``-c'' for the class.

it then says in su(1):

     If the optional args are provided on the command line, they are passed to
     the login shell of the target login.

so this porobably means that the ``-c command'' is then passed to the
login shell which might be i.e. /bin/sh. thus it ends up in:
/bin/sh -c command. but why do i needs this? it could also be
/bin/sh command, or?

regards,
cjm
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