dp.man

早期freebsd实现

DP(8)              BSD System Manager's Manual              DP(8)


NNAAMMEE
       dp - parse dates 822-style

SSYYNNOOPPSSIISS
       /usr/contrib/mh-6.8/lib/dp              [-form formatfile]
            [-format string] [-width columns] dates ...  [-help]

DDEESSCCRRIIPPTTIIOONN
       _D_p is a program that parses dates according  to  the  ARPA
       Internet  standard.  It also understands many non-standard
       formats, such as those produced by TOPS-20 sites and  some
       UNIX  sites  using _c_t_i_m_e (3).  It is useful for seeing how
       _M_H will interpret a date.

       The _d_p program treats each argument as a single date,  and
       prints the date out in the official 822-format.  Hence, it
       is usually best to enclose each argument in  double-quotes
       for the shell.

       To   override   the   output   format   used  by  _d_p,  the
       `-format string'  or  `-format file'  switches  are  used.
       This  permits  individual  fields  of  the  address  to be
       extracted with  ease.   The  string  is  simply  a  format
       stringand   thefile   is   simply   a  format  file.   See
       _m_h_-_f_o_r_m_a_t (5) for the details.

       Here is the default format string used by _d_p:

            %<(nodate{text})error: %{text}%|%(putstr(pretty{text}))%>

       which says that if an error was detected, print the error,
       a  `:',  and  the  date  in  error.  Otherwise, output the
       822-proper format of the date.

FFIILLEESS
       $HOME/.mh_profile                         The user profile

PPRROOFFIILLEE CCOOMMPPOONNEENNTTSS
       None

SSEEEE AALLSSOO
       ap(8)
       _S_t_a_n_d_a_r_d _f_o_r _t_h_e _F_o_r_m_a_t _o_f  _A_R_P_A  _I_n_t_e_r_n_e_t  _T_e_x_t  _M_e_s_s_a_g_e_s
       (aka RFC-822)

DDEEFFAAUULLTTSS
       `-format' default as described above
       `-width' default to the width of the terminal

CCOONNTTEEXXTT
       None



[mh.6]                        MH.6.8                            1








DP(8)              BSD System Manager's Manual              DP(8)


BBUUGGSS
       The  argument  to the `-format' switch must be interpreted
       as a single token by the shell that  invokes  _d_p.   There-
       fore,  one  must usually place the argument to this switch
       inside double-quotes.

















































[mh.6]                        MH.6.8                            2