seq1 seq1.seq seq2 seq2.seq mode pp seq1_pp_op ../my_pp1 seq2_pp_op my_pp2 seq1_sample_ct_op ../my_ct1_sample.txt seq2_sample_ct_op ../../my_ct2_sample.txt sample_aln_op ./my_aln_sample.txt seq1_map_ct_op ../my_map_ct1.txt seq2_map_ct_op ../../my_map_ct2.txt map_aln_op ../my_map_aln.txt nsamp 1000