no command history with ksh as root?

[A. Lester Buck]

On two different systems, ksh history editing just beeps at me in vi
mode instead of rolling back to the last command.  Things work fine
if I am a normal user.  There is a .sh_history file that contains the
history in both cases.

I am working through "The Korn Shell" book, but can't find anything
about such a restriction.  Do I have something set up wrong, or is
history use while root restricted for some security reason?


-- 
A. Lester Buck     buck at siswat.lonestar.org  ...!texbell!moray!siswat!buck