1OSMIUM-CAT(1) OSMIUM-CAT(1)
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6 osmium-cat - concatenate OSM files and convert to different formats
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9 osmium cat [OPTIONS] OSM-FILE...
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12 Concatenates all input files and writes the result to the output file.
13 The data is not sorted in any way but strictly copied from input to
14 output.
15 Because this program supports several different input and output for‐
17 mats, it can be used to convert OSM files from one format into another.
18 This commands reads its input file(s) only once and writes its output
20 file in one go so it can be streamed, ie. it can read from STDIN and
21 write to STDOUT.
22 Usually this is not the right command to merge two or more typical OSM
24 files, see osmium merge for that.
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27 -c, --clean=ATTR
28 Clean the attribute (version, timestamp, changeset, uid, user),
29 from the data before writing it out again. The attribute will
30 be set to 0 (the user will be set to the empty string). This
31 option can be given multiple times. Depending on the output
32 format these attributes might show up as 0 or not show up at
33 all.
34 -t, --object-type=TYPE
36 Read only objects of given type (node, way, relation, change‐
37 set). By default all types are read. This option can be given
38 multiple times.
39 --buffer-data
41 Read all input files into memory and only then write out all the
42 data. This will need a lot of memory and is usually slower than
43 a normal copy. Used for timing the reading and writing phase
44 separately.
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47 -h, --help
48 Show usage help.
49 -v, --verbose
51 Set verbose mode. The program will output information about
52 what it is doing to STDERR.
53 --progress
55 Show progress bar. Usually a progress bar is only displayed if
56 STDOUT and STDERR are detected to be TTY. With this option a
57 progress bar is always shown. Note that a progress bar will
58 never be shown when reading from STDIN or a pipe.
59 --no-progress
61 Do not show progress bar. Usually a progress bar is displayed
62 if STDOUT and STDERR are detected to be a TTY. With this option
63 the progress bar is suppressed. Note that a progress bar will
64 never be shown when reading from STDIN or a pipe.
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67 -F, --input-format=FORMAT
68 The format of the input file(s). Can be used to set the input
69 format if it can’t be autodetected from the file name(s). This
70 will set the format for all input files, there is no way to set
71 the format for some input files only. See osmium-file-for‐
72 mats(5) or the libosmium manual for details.
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75 -f, --output-format=FORMAT
76 The format of the output file. Can be used to set the output
77 file format if it can’t be autodetected from the output file
78 name. See osmium-file-formats(5) or the libosmium manual for
79 details.
80 --fsync
82 Call fsync after writing the output file to force flushing buf‐
83 fers to disk.
84 --generator=NAME
86 The name and version of the program generating the output file.
87 It will be added to the header of the output file. Default is
88 “osmium/” and the version of osmium.
89 -o, --output=FILE
91 Name of the output file. Default is `-' (STDOUT).
92 -O, --overwrite
94 Allow an existing output file to be overwritten. Normally os‐
95 mium will refuse to write over an existing file.
96 --output-header=OPTION=VALUE
98 Add output header option. This command line option can be used
99 multiple times for different OPTIONs. See the osmium-output-
100 headers(5) man page for a list of available header options. For
101 some commands you can use the special format “OPTION!” (ie. an
102 exclamation mark after the OPTION and no value set) to set the
103 value to the same as in the input file.
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106 osmium cat exits with exit code
107 0 if everything went alright,
109 1 if there was an error processing the data, or
111 2 if there was a problem with the command line arguments.
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115 osmium cat does all its work on the fly and doesn’t keep much data in
116 main memory.
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119 Convert a PBF file to a compressed XML file:
120 osmium cat -o out.osm.bz2 in.osm.pbf
122 Concatenate all change files in the `changes' directory into one:
124 osmium cat -o all-changes.osc.gz changes/*.osc.gz
126 Copy nodes and ways from source to destination file:
128 osmium cat -o dest.osm.pbf source.osm.pbf -t node -t way
130 Remove changeset, uid, and user from a file to protect personal data:
132 osmium cat -c changeset -c uid -c user -o cleaned.osm.pbf data.osm.pbf
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136 • osmium(1), osmium-file-formats(5), osmium-merge(1), osmium-output-
137 headers(5)
138 • Osmium website (https://osmcode.org/osmium-tool/)
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142 Copyright (C) 2013-2023 Jochen Topf <jochen@topf.org>.
143 License GPLv3+: GNU GPL version 3 or later <https://gnu.org/li‐
145 censes/gpl.html>. This is free software: you are free to change and
146 redistribute it. There is NO WARRANTY, to the extent permitted by law.
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149 If you have any questions or want to report a bug, please go to
150 https://osmcode.org/contact.html
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153 Jochen Topf <jochen@topf.org>.
154 1.16.0 OSMIUM-CAT(1)