ccoommmm -- Command

Print common lines
ccoommmm [ -112233 ] _f_i_l_e_1 _f_i_l_e_2

The command ccoommmm prints the lines  unique to _f_i_l_e_1 in the first column, the
lines unique to _f_i_l_e_2 in the second column, and the lines common to both in
the third.  Both  _f_i_l_e_1 and _f_i_l_e_2 should be sorted  in ASCII order.  Any or
all  columns may  be  suppressed by  indicating  the column  or columns  to
suppress in the optional flag.  The file `-' means standard input.

_S_e_e _A_l_s_o
ccmmpp, ccoommmmaannddss, ddiiffff, ssoorrtt, uunniiqq
