Korn Shell: Unix and Linux Programming Manual, Third Edition, The By Anatole Olczak
Table of Contents
Appendix E. Korn Shell Man Page
Ksh is a command and programming language that executes commands read from a terminal or a file. Rsh is a restricted version of the standard command interpreter ksh; it is used to set up login names and execution environments whose capabilities are more controlled than those of the standard Korn shell. See Invocation below for the meaning of arguments to the shell.