NAME

       osmium-cat - concatenate OSM files and convert to different formats

SYNOPSIS

       osmium cat [OPTIONS] OSM-FILE...

DESCRIPTION

       Concatenates  all  input  files and writes the result to the output file.  The data is not
       sorted in any way but strictly copied from input to output.

       Because this program supports several different input and output formats, it can  be  used
       to convert OSM files from one format into another.

       This commands reads its input file(s) only once and writes its output file in one go so it
       can be streamed, ie.  it can read from STDIN and write to STDOUT.

OPTIONS

       -t, --object-type=TYPE
              Read only objects of given type (node, way, relation, changeset).  By  default  all
              types are read.  This option can be given multiple times.

COMMON OPTIONS

       -h, --help
              Show usage help.

       -v, --verbose
              Set  verbose  mode.   The program will output information about what it is doing to
              STDERR.

       --progress
              Show progress bar.  Usually a progress bar is only displayed if STDERR is  detected
              to  be  a  TTY.   With  this  option  a  progress bar is always shown.  Note that a
              progress bar will never be shown when reading from STDIN or a pipe.

       --no-progress
              Do not show progress bar.  Usually  a  progress  bar  is  displayed  if  STDERR  is
              detected  to be a TTY.  With this option the progress bar is suppressed.  Note that
              a progress bar will never be shown when reading from STDIN or a pipe.

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

EXAMPLES

       Convert a PBF file to a compressed XML file:

              osmium cat -o out.osm.bz2 in.osm.pbf

       Concatenate all change files in the 'changes' directory into one:

              osmium cat -o all-changes.osc.gz changes/*.osc.gz

       Copy nodes and ways from source to destination file:

              osmium cat -o dest.osm.pbf source.osm.pbf -t node -t way

SEE ALSO

       • osmium(1), osmium-file-formats(5)

       • 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.

CONTACT

       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>.

                                              1.7.1                                 OSMIUM-CAT(1)