Usage: bufrread.pl [--ahl ] [--all_operators] [--bitmap] [--codetables] [--data_only] [--filter ] [--help] [--nodata] [--noqc] [--on_error_stop] [--optional_section] [--outfile ] [--param ] [--strict_checking n] [--tableformat ] [--tablepath ] [--verbose n] [--width n] Options: --ahl Decode BUFR messages with AHL matching only --all_operators Show all operator descriptors when printing section 4 --bitmap Display bit-mapped values on same line --codetables Use code and flag tables to resolve values when unit is [CODE TABLE] or [FLAG TABLE] --data_only Print section 4 (data section) only --filter Decode observations meeting criteria in only --help Display Usage and explain the options used. For even more info you might prefer to consult perldoc bufrread.pl --nodata Do not print (nor decode) section 4 (data section) --noqc Do not decode quality control (or any descriptors following 222000) --on_error_stop Stop processing as soon as an error occurs during decoding --outfile Will print to instead of STDOUT --optional_section Display a hex dump of optional section if present --param Display parameters with descriptors in only --strict_checking n n=0 (default) Disable strict checking of BUFR format n=1 Issue warning if (recoverable) error in BUFR format n=2 Croak if (recoverable) error in BUFR format. Nothing more in this message/subset will be decoded. --tableformat Currently supported are BUFRDC and ECCODES (default is BUFRDC) --tablepath Set path to BUFR tables (overrides ENV{BUFR_TABLES}) --verbose n Set verbose level to n, 0<=n<=6 (default 0). n=1 will show the tables loaded. --width n Set width of field used for data values to n characters (default is 15) Options may be abbreviated, e.g. "--h" or "-h" for "--help". To avoid having to use the "--tablepath" option, you are adviced to set the environment variable BUFR_TABLES to the directory where your BUFR tables are located (unless the default path provided by bufrread.pl works for you). For tableformat ECCODES, se for more info on how to set "--tablepath" (or BUFR_TABLES). For option "--ahl" the should be a Perl regular expression. E.g. "--ahl "ISS... ENMI"" will decode only BUFR SHIP (ISS) from CCCC=ENMI. This is the only case where a little knowledge of Perl might possibly be required when using the utility programs included in Geo::BUFR. For option "--param" each line in should start with a BUFR descriptor (6 digits). Rest of line will be ignored. bufrread.pl will display values for these descriptors only. Using "--filter" will decode only those observations that meet one of the criteria in (and all of those criteria marked D!). Comments (starting with #) are ignored. An example of a filter file is D: 001001 1 D: 001001 001002 3 895 6 252 D: 001011 LF5U # Ekofisk D!: 004004 6 7 which decodes all observations with block number 01, two other specific WMO stations and one specific ship, all of which having hour (004004) equal to 6 or 7. If there is no value line after a descriptor line, it is enough that the observation contains the descriptor(s), whatever the values are. So to extract all ship messages from a BUFR file, the filter file should contain this single line only: D: 001011 If an error occurs during decoding (typically because the required BUFR table is missing or message is corrupt), the BUFR message is skipped with an error message printed to STDERR, and processing then continues with the next BUFR message. You can change this default behaviour, however, by setting "--on_error_stop".