Command: echo (config.sys command)
  ECHO displays messages. There also exists a
  BATCH-FILE/AUTOEXEC.BAT/COMMAND.COM version.
  ECHO is a CONFIG.SYS / FDCONFIG.SYS command.
Syntax:
  ECHO [message]
Options:
  message  The message you want to be displayed to the user.
Comments:
  ECHO displays (echos) its arguments to the console during CONFIG.SYS /
  FDCONFIG.SYS processing when device drivers are loaded (when DEVICE=
  lines are executed).
  ECHO is a command internal to kernel.sys and needs no other file
  in order to work. There also exists a command.com ECHO command with
  different options.
Examples:
  IN CONFIG.SYS / FDCONFIG.SYS:
    ECHO loading driver1
    device=Driver1.sys
    ECHO driver1 successfully loaded
See also:
  autoexec.bat
  batch files
  config.sys
  echo (command.com command)
  eecho
  fdconfig.sys
File:
  Please read this command's lsm file also.
  You will find the updated version (internet) here and
  the version described in this manual page here.
  The lsm file contains information about the name of the programmer,
  the download site, and some other command related information.
  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.