оболочка, стандартный интерпретатор командного языка (shell, the standard command language interpreter)
Описание (Description)
The sh utility is a command language interpreter that shall
execute commands read from a command line string, the standard
input, or a specified file. The application shall ensure that the
commands to be executed are expressed in the language described
in Chapter 2, Shell Command Language.
Pathname expansion shall not fail due to the size of a file.
Shell input and output redirections have an implementation-
defined offset maximum that is established in the open file
description.
