v.rmdup(1)		      Grass User's Manual		    v.rmdup(1)



NNAAMMEE
       vv..rrmmdduupp	- Remove duplicate items GRASS vector file. (GRASS Vector Pro-
       gram)

SSYYNNOOPPSSIISS
       vv..rrmmdduupp

       vv..rrmmdduupp hheellpp

       vv..rrmmdduupp iinnppuutt==_n_a_m_e oouuttppuutt==_n_a_m_e [tthhrreesshhoolldd==_v_a_l_u_e]

DDEESSCCRRIIPPTTIIOONN
       _v_._r_m_d_u_p removes duplicate lines, areas, and points from a binary vector
       file  (input).	Duplicate  may be defined as exact (less than 1.12e-16
       for IEEE double precision), or defined with a threshold.

   PPaarraammeetteerrss::
       iinnppuutt==_n_a_m_e
	      Name of a binary vector file

       oouuttppuutt==_n_a_m_e
	      Name given to binary vector output file.

       tthhrreesshhoolldd==_v_a_l_u_e
	      Threshold for defining duplicate lines, areas, and points.

       The search technique used by _v_._r_m_d_u_p is not extremely sophisticated and
       may take a long time for large files.  Instead, only two sets of lines,
       areas, or points are active at any one time (so it is conservative with
       memory).

SSEEEE AALLSSOO
       _v_._c_l_e_a_n_, _v_._d_i_g_i_t_, _v_._p_r_u_n_e_, _v_._s_p_a_g_, _v_._s_u_p_p_o_r_t


AAUUTTHHOORR
       James Darrell McCauley, Purdue University

       GRASS 5 fixes by Roger S. Miller

       _L_a_s_t _c_h_a_n_g_e_d_: _$_D_a_t_e_: _2_0_0_2_/_0_1_/_2_5 _0_5_:_4_5_:_3_5 _$



GRASS 5.0							    v.rmdup(1)
