man osmium-fileinfo (1): show information about an OSM file

SYNOPSIS

osmium fileinfo [OPTIONS] OSM-FILE

DESCRIPTION

Shows various information about OSM files such as the file type, bounding boxes in the header, etc.

This command will usually only read the file header. Use the --extended option to show more information.

Normally this command will output the data in human readable form. If the -j, --json option is used, the output will be in JSON format instead.

If the -g, --get option is used, only the value of the named variable will be printed.

The output is split into three sections:

File

This section shows the information available without opening the file itself. It contains the file name, the format deduced from the file name, the compression used and the size of the file in bytes.

Header

This section shows the information available from the header of the file (if available, OPL files have no header). Any available bounding boxes are shown as well as header options such as the generator and file format version.

Data

This section shows the information available from reading the whole file. It is only shown if the --extended option was used. It shows the actual bounding box calculated from the nodes in the file, the first and last timestamp of all objects in the file, a CRC32 checksum of the data in the file, the number of changesets, nodes, ways, and relations found in the file, whether the objects in the file were ordered by type (nodes, then ways, then relations) and id, and whether there were multiple versions of the same object in the file (history files and change files can have that).

OPTIONS

-e, --extended

Read the complete file and show additional information. The default is to read only the header of the file.

-g, --get=VARIABLE

Get value of VARIABLE. Can not be used together with --json.

-G, --show-variables

Show a list of all variable names.

-j, --json

Output in JSON format. Can not be used together with --get.

COMMON OPTIONS

-h, --help

Show usage help.

-v, --verbose

Set verbose mode. The program will output information about what it is doing to stderr.

INPUT OPTIONS

-F, --input-format=FORMAT

The format of the input file(s). Can be used to set the input format if it can't be autodetected from the file name(s). This will set the format for all input files, there is no way to set the format for some input files only. See osmium-file-formats(5) or the libosmium manual for details.

VARIABLES

The following variables are available:

file.name - STRING
file.format - STRING: XML|PBF
file.compression - STRING: none|bzip2|gzip
file.size - INTEGER (0 for stdout)
header.with_history - BOOL (yes|no)
header.option.generator - STRING
header.option.version - STRING
header.option.pbf_dense_nodes - BOOL (yes|no)
header.option.osmosis_replication_timestamp - STRING with TIMESTAMP
header.option.osmosis_replication_sequence_number - INTEGER
header.option.osmosis_replication_base_url - STRING
data.bbox - BOX
    (in JSON as nested ARRAY with coordinates)
data.timestamp.first - STRING with TIMESTAMP
data.timestamp.last - STRING wih TIMESTAMP
data.objects_ordered - BOOL (yes|no)
data.multiple_versions - STRING (yes|no|unknown)
    (in JSON as BOOL and missing if "unknown")
data.crc32 - STRING with 8 hex digits
data.count.nodes - INTEGER
data.count.ways - INTEGER
data.count.relations - INTEGER
data.count.changesets - INTEGER
data.maxid.nodes - INTEGER
data.maxid.ways - INTEGER
data.maxid.relations - INTEGER
data.maxid.changesets - INTEGER

All timestamps are in the usual OSM ISO format yy-mm-ddThh::mm::ssZ. Boxes are in the format (xmin, ymin, xmax, ymax).

DIAGNOSTICS

osmium fileinfo exits with exit code

0

if everything went alright,

1

if there was an error processing the data, or

2

if there was a problem with the command line arguments.

MEMORY USAGE

osmium fileinfo does all its work on the fly and doesn't keep much data in main memory.

COPYRIGHT

License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

CONTACT

If you have any questions or want to report a bug, please go to http://osmcode.org/contact.html

AUTHORS

Jochen Topf <[email protected]>.