The _c_l_o_g_i_n command is executed at the beginning of each session on the
graphics console. It replaces the functionality of the command _l_o_g_i_n(1).
The choice between _l_o_g_i_n(1) and _c_l_o_g_i_n is made on the basis of the
configuration variable _v_i_s_u_a_l_l_o_g_i_n(4). If this configuration variable is
set to oooonnnn then _c_l_o_g_i_n is used in place of _l_o_g_i_n(1).
_c_l_o_g_i_n displays a window containing two areas. The top area contains
icons representing each of the users who can log onto the system. The
bottom area contains a text field into which the user can type a login
name.
To log in, the user must first enter the correct login name. This can be
done by typing it at the keyboard, or by clicking with the left mouse
button on the icon representing the user. The user must then click with
the left mouse on the button labeled LLLLooooggggiiiinnnn or press the Enter key.
Quickly clicking twice on the user icon (double-clicking) will have the
same effect as typing the login name and pressing the Enter key.
If the user has a password, a second text field is displayed. The user
must now type the correct password and either click on the LLLLooooggggiiiinnnn button
or press Enter. If the password is correct, the login process begins.
Otherwise, _c_l_o_g_i_n returns to its initial state.
To log in to an account for which an icon is not displayed, the user must
type both the login name and the password.
Users whose home directory does not exist cannot log in with _c_l_o_g_i_n and
the user accounts will not be displayed as icons.
The standard user icons may be replaced with color or black & white
images. _c_l_o_g_i_n will check for the files $$$$HHHHOOOOMMMMEEEE////....iiiiccccoooonnnnssss////llllooooggggiiiinnnn....iiiiccccoooonnnn,,,,
////uuuussssrrrr////llllooooccccaaaallll////lllliiiibbbb////ffffaaaacccceeeessss////$$$$UUUUSSSSEEEERRRR and ////uuuussssrrrr////lllliiiibbbb////ffffaaaacccceeeessss////$$$$UUUUSSSSEEEERRRR for login images,
where $$$$HHHHOOOOMMMMEEEE represents the user's home directory and $$$$UUUUSSSSEEEERRRR represents the
user's login name. The files must be in SGI image library format, and
should be 100 by 100 pixels in size or smaller (although larger images
will be scaled down automatically). The images must be either RGB color
or black & white images; colormap images cannot be displayed correctly.
The login process for the graphics console may be automated by
configuring the system to autologin. The autologin process, when
enabled, bypasses the _c_l_o_g_i_n login when a valid entry is read from
/etc/autologin. The entry is then used as the identity for the session.
Autologin is disabled by _l_o_g_i_n once it has successfully initiated a
session on the graphics console. Autologin is enabled during boot time if
If the user is logging in on the graphics console, xdm(1) initiates and
manages a login session. If the string FAILSAFE (or failsafe) is entered
after the name, xdm(1) will bypass its normal session initialization, and
give the user a single window shell. See xdm(1).
For more information on how the initial environment is configured, see
_l_o_g_i_n(1).
NNNNOOOOTTTTEEEESSSS
The file /etc/passwd.sgi is no longer used to determine which icons
appear on _c_l_o_g_i_n, and it is not used by the User Manager either. The
////vvvvaaaarrrr////ssssyyyyssssaaaaddddmmmm////ccccoooonnnnffffiiiigggg////ccccllllooooggggiiiinnnn....ccccoooonnnnffff file is used instead to customize the
behavior of _c_l_o_g_i_n, including not displaying icons for certain users,
displaying generic icons vs. images, etc. Please note that the path name
of ccccllllooooggggiiiinnnn....ccccoooonnnnffff is changed from ////vvvvaaaarrrr////CCCCaaaaddddmmmmiiiinnnn////ccccllllooooggggiiiinnnn....ccccoooonnnnffff to