dp - nmh parser of RFC 822-style dates
[-help] [-version] [-form formatfile]
[-format string] [-width columns] dates
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 ctime
(3). It is
useful for seeing how nmh
will interpret a date.
program treats each argument as a single date, and prints the date
out in the official RFC 822 format. Hence, it is usually best to enclose each
argument in quotes for the shell.
To override the output format used by dp
, the -format
or -format file
switches are used. This permits
individual fields of the address to be extracted with ease. The string is
simply a format string and the file is simply a format file. See
(5) for the details.
Here is the default format string used by dp
which says that if an error was detected, print the error, a `:', and the date
in error. Otherwise, output the RFC 822-proper format of the date.
- The user's profile.
Standard for the Format of ARPA Internet Text Messages
- As described above.
- The width of the terminal.