This is the command extract_usage_from_stx that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
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.
Just show version information and exit.
Just show a short help message and exit.
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