> On 7/31/21, Michael Siegel <msi(a)malbolge.net> wrote:
> The TOPS-20 COMND JSYS implemented both of these features, and I
think that command
> completion was eventually added to the VMS command interpreter, too.
FYI, There is also a unix version of the COMND JSYS capability. It was
developed at Columbia University as part of their "mm" mail manager. It
is located in to the ccmd subdirectory in the mm.tar.gz file.