Cross Reference: /test/vts-testcase/kernel/ltp/shell_environment/definitions

`Name`	`Date`	`Size`
Up to higher level directory
`__init__.py`	06-Dec-2017	`0`
`base_definitions/`	06-Dec-2017
`bin_in_path.py`	06-Dec-2017	`2.5K`
`directory_exists.py`	06-Dec-2017	`3K`
`loop_device_support.py`	06-Dec-2017	`1,018`
`path_permission.py`	06-Dec-2017	`3.5K`