.. index::
single: UNIX
+ single: Windows
single: command line
single: standard input
-Under Unix, a complete program can be passed to the interpreter in three forms:
-with the :option:`-c` *string* command line option, as a file passed as the
-first command line argument, or as standard input. If the file or standard
-input is a tty device, the interpreter enters interactive mode; otherwise, it
-executes the file as a complete program.
+A complete program can be passed to the interpreter
+in three forms: with the :option:`-c` *string* command line option, as a file
+passed as the first command line argument, or as standard input. If the file
+or standard input is a tty device, the interpreter enters interactive mode;
+otherwise, it executes the file as a complete program.
.. _file-input: