mkdir /path/to/VELVET/testcase cd /path/to/VELVET/testcase
tar zxvf HMP.small.tar.gz
velveth out-dir 51 -fasta -shortPaired HMP.small/SRR041654_shuffled.fasta HMP.small/SRR041655_shuffled.fasta
velvetg out-dir -exp_cov auto -ins_length 260
meta-velvetg out-dir -ins_length 260