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Usage: bufralter.pl <bufr file> [--data <descriptor=value>] [--bufr_edition <value>] [--centre <value>] [--subcentre <value>] [--update_number <value>] [--category <value>] [--subcategory <value>] [--int_subcategory <value>] [--loc_subcategory <value>] [--master_table_version <value>] [--local_table_version <value>] [--year <value>] [--year_of_century <value>] [--month <value>] [--day <value>] [--hour <value>] [--minute <value>] [--second <value>] [--observed 0|1] [--compress 0|1] [--remove_sec2] [--remove_qc] [--outfile <file>] [--strict_checking n] [--tablepath <path to BUFR tables>] [--verbose n] [--help]