Mksh

The MirBSD Korn Shell (mksh) is a UNIX command line shell that has been ported to OS/2 by KO Myung-Hun, it is commonly used as an alternative to older bash style shells when compiling/porting programs originally developed by UNIX style systems.

It offers the Korn Shell programming language and could be used as a successor to the Public Domain Korn Shell (pdksh).