ap - parse addresses 822-style
The ap program treats each argument as one or more addresses, and prints those addresses 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 ap, 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 string, and the file is simply a format file. See mh-format (5) for the details.
In addition to the standard escapes, ap also recognizes the following additional escape:
Escape Returns Description error string A diagnostic if the parse failed
If the `-normalize' switch is given, ap will try to track down the official hostname of the address.
Here is the default format string used by ap:
which says that if an error was detected, print the error, a `:', and
the address in error. Otherwise, output the 822-proper format of
^$HOME/.mh_profile~^The user profile
^/etc/nmh/mts.conf~^nmh mts configuration file
Standard for the Format of ARPA Internet Text Messages (RFC-822) `-format' defaults as described above `-normalize' `-width' defaults to the width of the terminal None The argument to the `-format' switch must be interpreted as a single token by the shell that invokes ap. Therefore, one must usually place the argument to this switch inside double-quotes.
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Created 1996-2021 by Maxim Chirkov
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