Copyright (c) 1980 Regents of the University of California.
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)su.1 6.2 (Berkeley) 05/05/86
All rights reserved. The Berkeley software License Agreement
specifies the terms and conditions for redistribution.
@(#)su.1 6.2 (Berkeley) 05/05/86
SU 1 ""
C NAME
su - substitute user id temporarily
SYNOPSIS
su [ -f ] [ - ] [ userid ]
DESCRIPTION
Su demands the password of the specified
userid, and if it is given,
changes to that
userid and invokes the Shell
sh (1) or
csh (1) without changing the current directory.
The user environment
is unchanged except for HOME and SHELL,
which are taken from the password file
for the user being substituted
(see
environ (7)). The new user ID stays in force until the Shell exits.
If no userid is specified, ``root'' is assumed. Only users in the ``wheel'' group (group 0) can su to ``root'', even with the root password. To remind the super-user of his responsibilities, the Shell substitutes `#' for its usual prompt.
The -f option prevents csh (1) from executing the .cshrc file; thus making su start up faster.
The - option simulates a full login.
"SEE ALSO"
sh(1), csh(1)