программный диалог с интерактивными программами, Версия 5 (programmed dialogue with interactive programs, Version 5)
LIBRARIES
Expect automatically knows about two built-in libraries for
Expect scripts. These are defined by the directories named in
the variables exp_library and exp_exec_library. Both are meant
to contain utility files that can be used by other scripts.
exp_library contains architecture-independent files.
exp_exec_library contains architecture-dependent files.
Depending on your system, both directories may be totally empty.
The existence of the file $exp_exec_library/cat-buffers describes
whether your /bin/cat buffers by default.