Korn Shell: Unix and Linux Programming Manual, Third Edition, The By Anatole Olczak
Table of Contents
Chapter 1. Introduction
To determine which version of the Korn shell you are using, run the following command:
$ print ${.sh.version}Version 1993-12-28 i
If you don't get a version back from this command, then you are probably using an older version of the Korn shell. Try running the what command on the Korn shell binary (usually located in /bin/ksh):
