This function is a convenience function to
find and return the path to the GDC Data Transfer
Tool executable assumed to be named 'gdc-client'.
The assumption is that the appropriate version of the
GDC Data Transfer Tool is a separate download available
from https://gdc.cancer.gov/access-data/gdc-data-transfer-tool
and as a backup from https://github.com/NCI-GDC/gdc-client.
The following locations are checked:
Usage
gdc_client()
Arguments
Value
character(1) the path to the gdc-client executable.
Details
Sys.which() to see if gdc-client is on the path
The current working directory
The file name specified in the environment variable GDC_CLIENT