helpString += "The cluster.fragments command should be in the following format: \n";
helpString += "cluster.fragments(fasta=yourFastaFile, names=yourNamesFile) \n";
helpString += "Example cluster.fragments(fasta=amazon.fasta).\n";
helpString += "The cluster.fragments command should be in the following format: \n";
helpString += "cluster.fragments(fasta=yourFastaFile, names=yourNamesFile) \n";
helpString += "Example cluster.fragments(fasta=amazon.fasta).\n";