The _f_l_a_g_s are a set of letters describing how the article
should be transmitted. Valid flags include ffff (interpret
_t_r_a_n_s_m_i_s_s_i_o_n _c_o_m_m_a_n_d as a file name and write the name and
size in bytes of each article on the end of it), FFFF (like ffff
but omit the size), IIII (like FFFF but write Message-ID:s instead
of filenames), nnnn (like FFFF but write a Message-ID: after each
filename), LLLL_n (only send articles generated within _n hops of
here; 0 is the default value for _n), mmmm (transmit only
moderated groups), uuuu (transmit only unmoderated groups).
There are other obsolete ones.
The _t_r_a_n_s_m_i_s_s_i_o_n _c_o_m_m_a_n_d is executed by the shell with the
article to be transmitted as the standard input. The
default is `uuuuuuuuxxxx ---- ----zzzz ----rrrr _s_y_s_n_a_m_e!!!!rrrrnnnneeeewwwwssss' for a command; the
PATH searched includes ////uuuussssrrrr////lllliiiibbbb////nnnneeeewwwwssssbbbbiiiinnnn////rrrreeeellllaaaayyyy, so that the
commands described in _n_e_w_s_m_a_i_l(8) are available as alterna-
tives to _u_u_x. If one of the _f_l_a_g_s has caused this field to
be taken as a filename, the default is
////uuuussssrrrr////ssssppppoooooooollll////nnnneeeewwwwssss////oooouuuutttt....ggggooooiiiinnnngggg////_s_y_s_n_a_m_e////ttttooooggggoooo; if a filename is
given but it does not start with `/', it is assumed to be
relative to the ////uuuussssrrrr////ssssppppoooooooollll////nnnneeeewwwwssss////oooouuuutttt....ggggooooiiiinnnngggg directory.
