Travel the TCGA dir, and run gdc-client to download specific data
The orgnization of TCGA dir should be:
TCGA_dir
|-- tissues
|-- data types
|-- gdc_manifest file (only one file)
Note:
- gdc-client should be added in $PATH;
- download gdc_manifest file first;
- only ONE gdc_manifest file in each data type dir.