SU(8) SU(8)
NAME
su - substitute user id temporarily
SYNOPSIS
/etc/su [ user ]
DESCRIPTION
Su demands the password for the login name user, and if it
is given, changes to that userid and invokes the Shell sh(1)
without changing the current directory. The user environ-
ment is unchanged except for HOME and SHELL, which are taken
from the password file for the user being substituted (see
environ(5)). The new userid stays in force until the Shell
exits.
If no user is specified, `root' is assumed. To remind the
super-user of his responsibilities, the Shell substitutes
`#' for its usual prompt.
SEE ALSO
sh(1)