wojtek@wojtek.from.pl writes:

>in man there is written about set vi and set vi-tabcomplete
>unfortunately it does not work.

set -o vi  (etc.)
    ^^
with "set vi" you just set the positional parameters to "vi".

>does anybody know how to make tabcompletion in ksh?

in the pdksh, which NetBSD's /bin/ksh is per default, with
set -o vi-tabcomplete, as the manpage says.

Just for the records, in the real KornShell, you cannot do this
in ksh88[1], but in ksh93 you can by rebinding some discipline and
setting viraw (obviously can't work in the default half-cooked
vi mode without the need for a third eol-character, which no Unix
has.)  (Just in case someone is about to use ksh on a UNIX[tm] system
and is wondering why "vi-tabcomplete" won't work.)

mkb

[1] vi-mode using ksh users normally get used to esc-\ and esc-=
pretty fast but ymmv.