text: .th ECHO I 3/15/72
  .sh NAME
  echo \*- echo arguments 
  .sh SYNOPSIS
  .bd echo
  [ arg ... ]
  .sh DESCRIPTION
  .it Echo
  writes all its arguments in order as a line on the
  standard output file.
  It is mainly useful for producing diagnostics in command files.
  .sh BUGS
  .it Echo
  with no arguments does not
  print a blank line.
  