.. _unix:**********************Unix Specific Services**********************The modules described in this chapter provide interfaces to features that areunique to the Unix operating system, or in some cases to some or many variantsof it. Here's an overview:.. toctree:: posix.rst pwd.rst spwd.rst grp.rst crypt.rst dl.rst termios.rst tty.rst pty.rst fcntl.rst pipes.rst posixfile.rst resource.rst nis.rst syslog.rst commands.rst
