explain(1) - [HELP] reads and navigates a VMS-style help file. (LICENSE:GNU LGPL)
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explain [HELP_FILENAME]
explain(1) reads and navigates a VMS-style help file. This shows a simple help file:
>1 Help_File_Format > >This is a brief suggestion of how a help file is laid out. A line >that begins with a number marks the beginning of a topic. The text >on that line is the label for the topic. > >2 What_the_User_Sees > >On issuing the help command, the user sees the main topic printed out. >Following this, a list of the immediate subtopics is presented. >The user can proceed to a subtopic by typing its label. > >3 Sub_Sub_Topics > >The arrangement of topics is a little like the grouping of parentheses. > >2 Suggestions > >You might want to keep each subtopic short, certainly no more than >a page in length.
HELP_FILENAME Name of help file. That is, a text file marked up using the VMS help file format. In this format, a number in column 1 is a label, and indicates the beginning of a help topic. Label 1 is reserved for the main help topic; subtopics of the main topic have a label of 2, and so on.
This code is distributed under the GNU LGPL license.
Lifecycle Information:
Author: John Burkardt, 2001-03-06, version 1.06 Modified: John S. Urban, 2019-01-25, version 1.07 Integrated into the GPF(General Purpose Fortran) format. The basic login remains the same, sans some utility routines that duplicated GPF routines; added the command --help and --version switches; allowed abbreviated case-insensitive topics.
Nemo Release 3.1 | explain (1) | February 23, 2025 |