ADDUSER(8) UNIX Programmer's Manual ADDUSER(8) NAME adduser - procedure for adding new users DESCRIPTION A new user must choose a login name, which must not already appear in /_e_t_c/_p_a_s_s_w_dor /_e_t_c/_a_l_i_a_s_e_s. It must also not begin with the hyphen (``-'') character. It is strongly recommended that it be all lower-case, and not contain the dot (``.'') character, as that tends to confuse mailers. An account can be added by editing a line into the passwd file; this must be done with the password file locked e.g. by using _c_h_p_a_s_s(1) or _v_i_p_w(8). A new user is given a group and user id. Login's and user id's should be unique across the system, and often across a group of systems, since they are used to control file access. Typically, users working on similar projects will be put in the same groups. At the University of California, Berkeley, we have groups for system staff, faculty, graduate students, and special groups for large projects. A skeletal account for a new user "ernie" might look like: ernie::25:30::0:0:Ernie Kovacs,508 Evans Hall,x7925,642-8202:/a/users/ernie:/bin/csh For a description of each of these fields, see _p_a_s_s_w_d(5). It is useful to give new users some help in getting started, supplying them with a few skeletal files such as ._p_r_o_f_i_l_e if they use "/bin/sh", or ._c_s_h_r_c and ._l_o_g_i_n if they use "/bin/csh". The directory "/usr/skel" contains skeletal definitions of such files. New users should be given copies of these files which, for instance, use _t_s_e_t(1) automati- cally at each login. FILES /etc/master.passwd user database /usr/skel skeletal login directory SEE ALSO chpass(1), finger(1), passwd(1), aliases(5), passwd(5), mkpasswd(8), vipw(8) BUGS User information should (and eventually will) be stored elsewhere. Printed 11/26/99 October 23, 1996 1