>>But in Inferno it's there and also the source (but is limbo).

>Acme has an Edit command now; it replaces
>/acme/edit.  See the manual page acme(1) for more.
>You want to execute "Edit ,s/Wrong/Right/g".

that's true of the Limbo version as well.

in both cases, it's not only much faster but more powerful.

the design of the old /acme/edit is worth remembering,
since it might be appropriate for something else later.