DBAMSG(1) General Commands Manual DBAMSG(1)
NAME
dbamsg - Work with encoded meteorological data
SYNOPSIS
dbamsg [command] [options] [args...]
DESCRIPTION
Examine, dump and convert files containing meteorological data. It supports observations encoded in BUFR, CREX and AOF formats.
dbamsg always requires a non-switch argument, that indicates what is the operation that should be performed:
help
Print a help summary.
help manpage
Print this manpage.
scan [options] [filter] filename [filename [...]]
Summarise the contents of a file with meteorological data.
dump [options] [filter] filename [filename [...]]
Dump the contents of a file with meteorological data.
cat [options] [filter] filename [filename [...]]
Dump the raw data of a file with meteorological data.
convert [options] [filter] filename [filename [...]]
Convert meteorological data between different formats.
compare [options] filename1 [filename2]
Compare two files with meteorological data.
fixaof [options] filename [filename1 [...]]]
Recomputes the start and end of observation period in the headers of the given AOF files.
makebufr [options] filename [filename1 [...]]]
Read a simple description of a BUFR file and output the BUFR file.. Read a simple description of a BUFR file and output the BUFR
file. This only works for simple BUFR messages without attributes encoded with data present bitmaps.
bisect [options] --test=testscript filename
Bisect filename and output the minimum subsequence found for which testscript fails.. Run testscript passing parts of filename on
its stdin and checking the return code. Then divide the input in half and try on each half. Keep going until testscript does not
fail in any portion of the file. Output to stdout the smallest portion for which testscript fails. This is useful to isolate the
few messages in a file that cause problems.
head [options] [filter] filename [filename [...]]
Dump the contents of the header of a file with meteorological data.
OPTIONS
dbamsg follows the usual GNU command line syntax, with long options starting with two dashes (`-').
Options used to filter messages
--category=num
match messages with the given data category
--subcategory=num
match BUFR messages with the given data subcategory
--check-digit=num
match CREX messages with check digit (if 1) or without check digit (if 0)
--unparsable
match only messages that cannot be parsed
--parsable
match only messages that can be parsed
--index=expr
match messages with the index in the given range (ex.: 1-5,9,22-30)
Option for command scan
-?, --help
print an help message
--verbose
verbose output
-t type, --type=type
format of the input data ('bufr', 'crex', 'aof')
Option for command dump
-?, --help
print an help message
--verbose
verbose output
-t type, --type=type
format of the unput data ('bufr', 'crex', 'aof')
--interpreted
dump the message as understood by the importer
--precise
import messages using precise contexts instead of standard ones
--text dump as text that can be processed by dbamsg makebufr
--csv dump in machine readable CSV format
--dds dump structure of data description section
--structured
structured dump of the message contents
Option for command cat
-?, --help
print an help message
--verbose
verbose output
-t type, --type=type
format of the input data ('bufr', 'crex', 'aof')
Option for command convert
-?, --help
print an help message
--verbose
verbose output
-t type, --type=type
format of the input data ('bufr', 'crex', 'aof', 'csv')
-d type, --dest=type
format of the data in output ('bufr', 'crex', 'aof')
--template=name
template of the data in output (autoselect if not specified, 'list' gives a list)
-r rep_memo, --report=rep_memo
force output data to be of this type of report
--precise
import messages using precise contexts instead of standard ones
--recompute-categories
recompute data categories and subcategories according to message contents
Option for command compare
-?, --help
print an help message
--verbose
verbose output
-t type, --type1=type
format of the first file to compare ('bufr', 'crex', 'aof')
-d type, --type2=type
format of the second file to compare ('bufr', 'crex', 'aof')
Option for command fixaof
-?, --help
print an help message
--verbose
verbose output
Option for command makebufr
-?, --help
print an help message
--verbose
verbose output
Option for command bisect
-?, --help
print an help message
--verbose
verbose output
--test=cmd
command to run to test a message group
-t type, --type=type
format of the input data ('bufr', 'crex', 'aof')
Option for command head
-?, --help
print an help message
--verbose
verbose output
-t type, --type=type
format of the input data ('bufr', 'crex', 'aof')
EXAMPLES
Here are some example invocations of dbamsg:
# Convert an AOF message to BUFR
dbamsg convert file.aof > file.bufr
# Convert a BUFR message to CREX
dbamsg convert file.bufr -d crex > file.crex
# Convert BUFR messages to CREX, but skip all those not in january 2010
dbamsg convert year=2010 month=1 file.bufr -d crex > file.crex
# Dump the content of a message, as they are in the message
dbamsg dump file.bufr
# Dump the content of a message, interpreted as physical quantities
dbamsg dump --interpreted file.bufr
TEMPLATE NAMES
This is a list of possible template names for the --template switch:
acars
ACARS (autodetect)
acars-ecmwf
ACARS ECMWF (4.145)
acars-wmo
ACARS WMO
airep
AIREP (autodetect)
airep-ecmwf
AIREP ECMWF (4.142)
amdar
AMDAR (autodetect)
amdar-ecmwf
AMDAR ECMWF (4.144)
amdar-wmo
AMDAR WMO
buoy
Buoy (1.21)
generic
Generic (255.0)
metar
Metar (0.140)
pilot
Pilot (2.91)
pollution
Pollution (8.171)
ship
Synop ship (autodetect)
ship-abbr
Synop ship (abbreviated) (1.9)
ship-auto
Synop ship (auto) (1.13)
ship-plain
Synop ship (normal) (1.11)
ship-reduced
Synop ship (reduced) (1.19)
synop
Synop (autodetect)
synop-ecmwf
Synop ECMWF (autodetect) (0.1)
synop-ecmwf-auto
Synop ECMWF land auto (0.3)
synop-ecmwf-land
Synop ECMWF land (0.1)
synop-ecmwf-land-high
Synop ECMWF land high level station (0.1)
synop-wmo
Synop WMO (0.1)
temp
Temp (autodetect)
temp-ecmwf
Temp ECMWF (autodetect)
temp-ecmwf-land
Temp ECMWF land (2.101)
temp-ecmwf-ship
Temp ECMWF ship (2.102)
temp-ship
Temp ship (autodetect)
temp-wmo
Temp WMO (2.101)
wmo
WMO style templates (autodetect)
--template=list will also print the list.
AUTHOR
dbamsg has been written by Enrico Zini <enrico@enricozini.com> for ARPA Emilia Romagna, Servizio Idrometeorologico.
may 16, 2012 DBAMSG(1)