You can invoke TECO with the standard DCL EDIT command by specifying
  the /TECO qualifier.

  Formats

  EDIT/TECO file-spec                   to edit an existing file
  EDIT/TECO file-spec/OUTPUT=new-file   to edit from one file to another
  EDIT/TECO file-spec/CREATE            to create a new file

  EDIT/TECO/EXECUTE=cmd-file-spec       to execute a TECO command file
  EDIT/TECO/EXECUTE=cmd-file-spec text  as above, but passes a text argument
                                        in the text buffer

  Additional Information (explode) :

• Initialization
• Defaults
• Memory
• Qualifiers