[unix-history] / usr / man / man1 / su.1

.TH SU 1 11/16/79
.UC
.SH NAME
su \- substitute user id temporarily
.SH SYNOPSIS
.B su
[ userid ]
.SH DESCRIPTION
.I Su
demands the password of the specified
.I userid,
and if it is given,
changes to that 
.I userid
and invokes the Shell
.IR sh (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
.IR environ (5)).
The new user ID stays in force until the Shell exits.
.PP
If no 
.I userid
is specified, `root' is assumed.
To remind the super-user of his responsibilities,
the Shell substitutes `#' for its usual prompt.
.SH "SEE ALSO"
sh(1)
.SH BUGS
Local administrative rules cause restrictions to
be placed on who can
.I su
to `root', even with the root password.
These rules vary from site to site.
Commit	Line	Data
16773074 BJ	1	.TH SU 1 11/16/79
	2	.UC
	3	.SH NAME
	4	su \- substitute user id temporarily
	5	.SH SYNOPSIS
	6	.B su
	7	[ userid ]
	8	.SH DESCRIPTION
	9	.I Su
	10	demands the password of the specified
	11	.I userid,
	12	and if it is given,
	13	changes to that
	14	.I userid
	15	and invokes the Shell
	16	.IR sh (1)
	17	without changing the current directory.
	18	The user environment
	19	is unchanged except for HOME and SHELL,
	20	which are taken from the password file
	21	for the user being substituted
	22	(see
	23	.IR environ (5)).
	24	The new user ID stays in force until the Shell exits.
	25	.PP
	26	If no
	27	.I userid
	28	is specified, `root' is assumed.
	29	To remind the super-user of his responsibilities,
	30	the Shell substitutes `#' for its usual prompt.
	31	.SH "SEE ALSO"
	32	sh(1)
	33	.SH BUGS
	34	Local administrative rules cause restrictions to
	35	be placed on who can
	36	.I su
	37	to `root', even with the root password.
	38	These rules vary from site to site.