NAME¶
osmium-merge - merge several sorted OSM files into one
SYNOPSIS¶
osmium merge [
OPTIONS]
OSM-FILE...
DESCRIPTION¶
Merges the content of all OSM files given on the command line into one large OSM
file. Objects in all files must be sorted by type, ID, and version. The
results will also be sorted in the same way. Objects that appear in multiple
input files will only be in the output once.
If there is only a single input file, its contents will be copied to the output.
If there are different versions of the same object in the input files, all
versions will appear in the output. So this command will work fine with
history files as input creating a new history file. Do not use this command to
merge non-history files with data from different points in time. It will not
work correctly.
COMMON OPTIONS¶
- -h, --help
- Show usage help.
- -v, --verbose
- Set verbose mode. The program will output information about what it is
doing to stderr.
- -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.
OUTPUT OPTIONS¶
- -f, --output-format=FORMAT
- The format of the output file. Can be used to set the output file format
if it can't be autodetected from the output file name. See
osmium-file-formats(5) or the libosmium manual for details.
- --fsync
- Call fsync after writing the output file to force flushing buffers to
disk.
- --generator=NAME
- The name and version of the program generating the output file. It will be
added to the header of the output file. Default is "
osmium/" and the version of osmium.
- -o, --output=FILE
- Name of the output file. Default is '-' (STDOUT).
- -O, --overwrite
- Allow an existing output file to be overwritten. Normally osmium
will refuse to write over an existing file.
- --output-header=OPTION
- Add output header option. This option can be given several times. See the
libosmium manual for a list of allowed header options.
DIAGNOSTICS¶
osmium merge 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 merge doesn't keep a lot of data in memory, but if you are merging
many files, the buffers might take a noticeable amount of memory.
EXAMPLES¶
Merge several extracts into one:
-
osmium merge washington.pbf oregon.pbf california.pbf -o westcoast.pbf
SEE ALSO¶
- •
- osmium(1), osmium-file-formats(5),
osmium-merge-changes(1)
- •
- Osmium website (http://osmcode.org/osmium-tool/)
COPYRIGHT¶
Copyright (C) 2013-2017 Jochen Topf <jochen@topf.org>.
License GPLv3+: GNU GPL version 3 or later
<
https://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.
If you have any questions or want to report a bug, please go to
http://osmcode.org/contact.html
AUTHORS¶
Jochen Topf <jochen@topf.org>.