Checking the version of a ksh

The system admins at my office are crazy they just replaced sh with ksh... evil little monsters... Here how to pull the ksh version

ksh
set -o vi

Now type esc and then Ctrl-V. The version of ksh will appear on the prompt. Something like "Version M-11/16/88f"

Yes its insane but so is ksh...

Ksh completion

Here is kshs way of getting file completion. (just another useless fact)

Keystoke	Action
ESC ESC	tab complete
ESC =	list possible completions
ESC *	expand all possible completions into command line