No idea about ^R, but typing ESC /pattern in vi mode looks for earlier commands containing pattern ...
On Sun, Aug 27, 2017 at 05:02:36PM +0200, Jan Stary wrote: > This is current/amd64. I am using ksh(1) as a shell. > Using ^R opens a search in the command history. > However, with 'export EDITOR=vi', pressing ^R > just literarily types '^R' and does not open > the history search. Is that expected? > > Jan -- Martin Bock :wq