NAME sh, rsh - shell, the standard/restricted command and programming language SYNOPSIS sh [ ±abcefhikmnoprstuvxCD ] [ -R file ] [ ±o option ] . . . [ - ] [ arg . . . ] rsh [ ±abcefhikmnoprstuvxCD ] [ -R file ] [ ±o option ] . . . [ - ] [ arg . . . ] TABLE OF CONTENTS Definitions. Commands. Variable Assignments. Comments. Aliasing. Tilde Substitution. Command Substitution. Arithmetic Substitution.