Provided by: osmctools_0.9-2_amd64 
NAME
osmupdate - Update OSM files
SYNOPSIS
osmupdate options [oldfile] [newfile]
DESCRIPTION
This program cares about updating an .osm, .o5m or .pbf file. It will download and apply OSM Change files
(.osc) from the servers of "planet.openstreetmap.org". It also can assemble a new .osc or .o5c file
which can be used to update your OSM data file at a later time.
Prequesites
To run this program, please download and install two other programs first: "osmconvert" and "wget".
Usage
Two command line arguments are mandatory: the name of the old and the name of the new OSM data file. If
the old data file does not have a file timestamp, you may want to specify this timestamp manually on the
command line. If you do not, the program will try to determine the timestamp by examining the whole old
data file. Instead of the second parameter, you alternatively may specify the name of a change file
(.osc or .o5c). In this case, you also may replace the name of the old OSM data file by a timestamp.
Command line arguments which are not recognized by osmupdate will be passed to osmconvert. Use this
opportunity to supply a bounding box or a bounding polygon if you are going to update a regional change
file. You also may exclude unneeded meta data from your file by specifying this osmconvert option:
--drop-author
OPTIONS
The program osmupdate recognizes a few command line options:
--max-days=UPDATE_RANGE
By default, the maximum time range for to assemble a cumulated changefile is 250 days. You can
change this by giving a different maximum number of days, for example 300. If you do, please
ensure that there are daily change files available for such a wide range of time.
--minute --hour --day --sporadic
By default, osmupdate uses a combination of minutely, hourly and daily changefiles. If you want to
limit these changefile categories, use one or two of these options and choose that category/ies
you want to be used. The option --sporadic allows processing changefile sources which do not have
the usual "minute", "hour" and "day" subdirectories.
--max-merge=COUNT
The subprogram osmconvert is able to merge more than two changefiles in one run. This ability
increases merging speed. Unfortunately, every changefile consumes about 200 MB of main memory
while being processed. For this reason, the number of parallelly processable changefiles is
limited. Use this commandline argument to determine the maximum number of parallelly processed
changefiles. The default value is 7.
-t=TEMPPATH --tempfiles=TEMPPATH
On order to cache changefiles, osmupdate needs a separate directory. This parameter defines the
name of this directory, including the prefix of the tempfiles' names. The default value is
"osmupdate_temp/temp".
--keep-tempfiles
Use this option if you want to keep local copies of every downloaded file. This is strongly
recommended if you are going to assemble different changefiles which overlap in time ranges. Your
data traffic will be minimized. Do not invoke this option if you are going to use different
change file sources (option --base-url). This would cause severe data corruption.
--trust-tempfiles
Use this option if you want to use the saved local copies of already downloaded changefiles
without checking their lengths against to their server-hosted originals. Downloads will be
limited to files not saved yet. Do not invoke this option if you suspect incomplete downloads.
--compression-level=LEVEL
Define level for gzip compression. Values between 1 (low compression, but fast) and 9 (high
compression, but slow).
--base-url=BASE_URL
To accelerate downloads or to get regional file updates you may specify an alternative download
location. Please enter its URL, or simply the word "mirror" if you want to use gwdg's planet
server.
--base-url-suffix=BASE_URL_SUFFIX
To use old planet URLs, you may need to add the suffix "-replicate" because it was custom to have
this word in the URL, right after the period identifier "day" etc.
-v --verbose
With activated 'verbose' mode, some statistical data and diagnosis data will be displayed. If -v
resp. --verbose is the first parameter in the line, osmupdate will display all input parameters.
NOTES
This program is for experimental use. Expect malfunctions and data loss. Do not use the program in
productive or commercial systems.
There is NO WARRANTY, to the extent permitted by law. Please send any bug reports to marqqs@gmx.eu
EXAMPLE
osmupdate old_file.o5m new_file.o5m
osmupdate old_file.pbf new_file.pbf
osmupdate old_file.osm new_file.osm
The old OSM data will be updated and written as new_file.o5m or new_file.o5m. For safety reasons
osmupdate will not delete the old file. If you do not need it as backup file, please delete it by
yourself.
osmupdate old_file.osm 2011-07-15T23:30:00Z new_file.osm
osmupdate old_file.osm NOW-86400 new_file.osm
If your old OSM data file does not contain a file timestamp, or you do not want to rely on this
timestamp, it can be specified manually. Relative times are in seconds to NOW.
osmupdate old_file.o5m change_file.o5c
osmupdate old_file.osm change_file.osc
osmupdate 2011-07-15T23:30:00Z change_file.o5c
osmupdate 2011-07-15T23:30:00Z change_file.osc.gz
osmupdate NOW-3600 change_file.osc.gz
Here, the old OSM data file is not updated directly. An OSM changefile is written instead. This
changefile can be used to update the OSM data file afterwards. You will have recognized the
extension .gz in the last example. In this case, the OSM Change file will be written with gzip
compression. To accomplish this, you need to have the program gzip installed on your system.
./osmupdate london_old.o5m london_new.o5m -B=london.poly
The OSM data file london_old.o5m will be updated. Hence the downloaded OSM changefiles contain not
only London, but the whole planet, a lot of unneeded data will be added to this regional file. The
-B= argument will clip these superfluous data.
SEE ALSO
osmconvert(1), osmfilter(1)
AUTHORS
osmconvert was written by Markus Weber
September 2013 OSMUPDATE(1)