#link up metadata files to collections and update metadata_source field
for f in `ls ../../../../../data_sources/sra/metadata/66/ERP110066/*.gz`; do f2=`basename $f | sed 's/sra./geuvadis_smartseq./'` ; ln -fs $f $f2; done
pcat ../../../../../data_sources/sra/metadata/66/ERP110066/sra.recount_project.ERP110066.MD.gz | sed 's/sra\tdata_sources\/sra\t/sra\tcollections\/geuvadis_smartseq\t/' | gzip > geuvadis_smartseq.recount_project.ERP110066.MD.gz