| 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 |