Korn Shell: Unix and Linux Programming Manual, Third Edition, The

Which Version Do You Have?

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):

					$ what /bin/ksh
					Version  12/28/93