g.access(1)		      Grass User's Manual		   g.access(1)



NNAAMMEE
       gg..aacccceessss  - Controls user access to the current GRASS mapset.
       _(_G_R_A_S_S File Management Program)

SSYYNNOOPPSSIISS
       gg..aacccceessss

DDEESSCCRRIIPPTTIIOONN
       This  program  allows the user to control access to the current mapset.
       Normally, any user can read data from any GRASS mapset.	But  sometimes
       it  is  desirable  to  prohibit	access	to certain sensitive data. The
       _g_._a_c_c_e_s_s command allows a user to restrict read and execute  access  to
       the  current mapset (see UNIX _c_h_m_o_d command).  _g_._a_c_c_e_s_s will not modify
       write access to the current mapset.


       The user may, for example, allow only users in the same UNIX  group  to
       read  data  files in the mapset, or restrict the mapset to personal use
       only.


       After typing gg..aacccceessss

       the user will be presented with a screen page which reflects  the  cur-
       rent  mapset  permissions.  The	user can then change them.  The screen
       page looks like:

	__________________________________________________________
       | LOCATION: spearfish			      MAPSET: demo|
       |							  |
       | This program allows you to control access to your	  |
       | mapset by other users. 				  |
       |							  |
       | Access may be granted/removed for everyone, or for	  |
       | everyone in your group.				  |
       |							  |
       | Mark an 'x' to allow access;  erase the field to	  |
       | restrict access.					  |
       |							  |
       |     GROUP: _x_ 					  |
       |     OTHER: _x_ 					  |
       |							  |
       |    AFTER COMPLETING ALL ANSWERS, HIT <ESC> TO CONTINUE       |
       |		    (OR   <Ctrl-C>   TO   CANCEL)
       |
       |__________________________________________________________|


       If  you	remove	the  x (using the space bar), access will be denied to
       that class of user (group or other).  If you type an x, access will  be
       granted to that class of user.

NNOOTTEESS
       There is no non-interactive version of _g_._a_c_c_e_s_s.


       Under GRASS version 4.0, access to the mapset PERMANENT must be open to
       all users.  This is because GRASS looks for  the  user's  default  geo-
       graphic region definition settings and the location TITLE in files that
       are stored under the PERMANENT mapset directory.  The _g_._a_c_c_e_s_s command,
       therefore,  will  not  allow  you  to  restrict access to the PERMANENT
       mapset.


       The _g_._m_a_p_s_e_t_s command isn't smart enough to tell if access to a	speci-
       fied mapset is restricted, and the user is therefore allowed to include
       the names of restricted mapsets in his search path.  However, the  data
       in  a restricted mapset is still protected; any attempts to look for or
       use data in a restricted mapset will fail.  The user  will  simply  not
       see any data listed for a restricted mapset.

SSEEEE AALLSSOO
       UNIX manual entries for _c_h_m_o_d and _g_r_o_u_p
       _g_._m_a_p_s_e_t_s

AAUUTTHHOORR
       Michael Shapiro, U.S. Army Construction Engineering Research Laboratory

       _L_a_s_t _c_h_a_n_g_e_d_: _$_D_a_t_e_: _2_0_0_2_/_0_1_/_2_5 _0_5_:_4_5_:_3_3 _$



GRASS 5.0							   g.access(1)
