get-value is a perl script to retrieve a value from a configuration file.

Copyright (c) 2018 Tim Chadburn.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3
or any later version published by the Free Software Foundation;
with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
A copy of the license is included in the file "fdl.txt" which is part of this
package.

get-value is a perl script to retrieve a value from a configuration file.

It is invoked like this:

get-value FILE PROPERTY ENTITY

FILE is the configuration file whose contents are searched for the answer.
The actual file searched is ~/.FILE, so if FILE were `snowfall', the file
searched would be `~/.snowfall'. PROPERTY is the type of information being
requested. ENTITY is the thing the information is about. The value, which is
what is returned, is the actual information itself.

The configuration files which are searched by get-value consist of lines which
each contain three words separated by spaces. They look like this:

PROPERTY ENTITY VALUE

An example would be:

editor txt emacs
editor default emacs
viewer txt less
viewer default less