validate=subprasers.add_parser('validate',help='check format and taxonomy')
validate.add_argument("-f","--fasta",type=str,help='path of the barcodes sequences FASTA file',required=True)
validate.add_argument("-c","--curate",type=str,help='path of the taxonomy curation CSV file. Header must be current_name;ncbi_name;genus;family. A curation CSV file can be generated with the command curegen',required=False,default="NA")
validate.add_argument("-n","--ncbi_taxdump",type=str,help='path of NCBI taxdump.tar.gz file',required=False,default="NA")
validate.add_argument("-n","--ncbi_taxdump",type=str,help='path of NCBI taxonomy folder',required=False,default="NA")