.Dd February 2, 2015
.Dt LOGIN 1
.Os ubase
.Sh NAME
.Nm login
.Nd log into the system
.Sh SYNOPSIS
.Nm
.Op Fl p
.Ar username
.Sh DESCRIPTION
.Nm
logs the
.Ar username
into the system. It sets
.Ev HOME ,
.Ev SHELL ,
.Ev USER ,
.Ev LOGNAME
and the
.Ev PATH environment variables and invokes the login shell as specified in
.Pa /etc/passwd .
.Sh OPTIONS
.Bl -tag -width Ds
.It Fl p
Preserve the environment.
.El