Korn Shell command interpreter (UNIX)
ksh [-aefhkmnquvx] [command_file [argument...]] ksh -c [-aefhkmnquvx] command_string [command_name [argument...]] ksh -i [-aefhkmquvx] [command_file [argument...]] ksh -s [-aefhkmnquvx] [argument...]
See sh.
The standard QNX shell, /bin/sh is a modified Korn shell derived from a version pdksh which was modeled after ksh86. A link to sh called ksh is installed in /bin when QNX is installed.
See the documentation for sh for documentation on the features of the shell.