Command: set (config.sys command)
  SET sets the environment variable to provided value.
  SET is a CONFIG.SYS / FDCONFIG.SYS command.
Syntax:
  SET [variable[=[string]]]
      variable  Specifies the environment-variable name.
      string    Specifies a series of characters to assign to
                the variable.
Options:
  - none -
Comments:
  SET sets the environment variable to provided value.
  SET is a command internal to kernel.sys and needs no other file
  in order to work. There also exists a COMMAND.COM SET command.
Examples:
  IN CONFIG.SYS / FDCONFIG.SYS:
    set home=C:\FDOS\bin
See also:
  autoexec.bat
  batch files
  command.com
  set (command.com command)
  Copyright © 2003 Robert Platt, updated 2008 by W. Spiegl.
  This file is derived from the FreeDOS Spec Command HOWTO.
  See the file H2Cpying for copying conditions.