\&
.RB [ \-p
.IR path ]
+.RB [ \-U
+.IR user ]
+.RB [ \-G
+.IR group ]
.RB [ \-S
.IB arg , arg ,\fR...]
.
(e.g.,
.BR \-a ).
.TP
+.BI "\-U, \-\-setuid=" user
+Set uid to that of
+.I user
+(either a user name or integer uid) after initialization. Also set gid
+to
+.IR user 's
+primary group, unless overridden by a
+.B \-G
+option. If a new
+.BR tripe (8)
+server is going to be spawned then it is also passed corresponding
+.B \-U
+and
+.B \-G
+options.
+.TP
+.BI "\-G, \-\-setgid=" group
+Set gid to that of
+.I group
+(either a group name or integer gid) after initialization. If a new
+.BR tripe (8)
+server is going to be spawned then it is also passed a corresponding
+.B \-G
+option.
+.TP
.B "\-l, \-\-syslog"
Send warnings and trace messages to the
.BR syslog (8)