err_download.py

#! /usr/bin/env python
import sys
for l in sys.stdin:
	accessions = l.rstrip().split("_")
	for accession in accessions:
		if len(accession)==9:
			dir1 = accession[:6]
			sys.stdout.write("ftp://ftp.sra.ebi.ac.uk/vol1/fastq/%s/%s/%s_1.fastq.gz\n" % (dir1,accession,accession))
			sys.stdout.write("ftp://ftp.sra.ebi.ac.uk/vol1/fastq/%s/%s/%s_2.fastq.gz\n" % (dir1,accession,accession))
		elif len(accession)==10:
			dir1 = accession[:6]
			dir2 = "00"+accession[9:11]
			sys.stdout.write("ftp://ftp.sra.ebi.ac.uk/vol1/fastq/%s/%s/%s/%s_1.fastq.gz\n" % (dir1,dir2,accession,accession))
			sys.stdout.write("ftp://ftp.sra.ebi.ac.uk/vol1/fastq/%s/%s/%s/%s_2.fastq.gz\n" % (dir1,dir2,accession,accession))