SYNOPSIS
osmium merge-changes [OPTIONS] OSM-CHANGE-FILE...
DESCRIPTION
Merges the content of all change files given on the command line into one large change file. Objects are sorted by type, ID, version, and timestamp so it doesn't matter in what order the change files are given or in what order they contain the data.
OPTIONS
- -s, --simplify
-
Only write the last version of any object to the output.
For an object created in one of the change files and removed in a later
one, the deleted version of the object will still appear because it is
the latest version.
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.
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-changes 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-changes keeps the contents of all the change files in main memory. This will take roughly 10 times as much memory as the files take on disk in .osm.bz2 format.
EXAMPLES
Merge all changes in changes directory into all.osc.gz:
-
osmium merge-changes -o all.osc.gz changes/*.gz
Because osmium merge-changes sorts its input, you can also use it to sort just a single change file:
-
osmium merge-changes unsorted.osc.gz -o sorted.osc.gz
COPYRIGHT
Copyright (C) 2013-2015 Jochen Topf <[email protected]>.
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