Documentation for each script is located in the LP DAAC User Resources BitBucket repository: https://git.earthdata.nasa.gov/projects/LPDUR.
This collection of R and Python scripts can be used to download data and perform basic data processing functions such as georeferencing, reprojecting, converting, and reformatting data. Scripts are available in Python and/or R and each have a README that provides additional information. All scripts are available for download from the LP DAAC User Resources BitBucket Code Repository.
Downloading the scripts does not require a login, but an Earthdata Login is required for downloading data from the LP DAAC. Information for how to sign up for an account can be found on the NASA Earthdata Login Website.