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extract_usage_from_stx - extract “Usage:” messages from manpages written in Stx


extract_usage_from_stx [ file file ... ]


Process the given files, which should be manpages written in Stx, stripping away
everything that is typically not included in a “Usage:” message. If no files are given,
read standard input instead.

A “Usage:” message is a message typically printed when a program is called with incorrect
arguments or when help is specifically requested, for example with a --help command line
option. A “Usage:” message is typically a subset of the information provided on a
command's manual page.

The information left in the “Usage:” message by extract_usage_from_stx includes:

· the command synopsis, as given in the “SYNOPSIS” section

· the command line options, as given in the “OPTIONS” section, together with the
first sentence of their description. A sentence is taken to end at a period (.).

The output of extract_usage_from_stx is still in Stx format, which you might want to
further process to produce the actual “Usage:” message.


--version, -V
Just show version information and exit.

--help, -?
Just show a short help message and exit.

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