NAME

       osmium-check-refs - check referential integrity of OSM file

SYNOPSIS

       osmium check-refs [OPTIONS] OSM-DATA-FILE

DESCRIPTION

       Ways  in  OSM files refer to OSM nodes; relations refer to nodes, ways, or other relations.  This command
       checks whether all objects referenced in the input file are also present in the input file.

       Referential integrity is often broken in extracts.  This can lead to problems with some uses of  the  OSM
       data.  Use this command to make sure your data is good.

       If  the option --check-relations/-r is not given, this command will only check if all nodes referenced in
       ways are in the file, with the option, relations will also be checked.

       This command expects the input file to be ordered in the usual way: First nodes in order of ID, then ways
       in order of ID, then relations in order of ID.  Negative IDs are allowed, they must be ordered before the
       positive IDs.  See the osmium-sort(1) man page for details of the ordering.

       This command will only work for OSM data files, not OSM history files or change files.

       This commands reads its input file only once, ie.  it can read from STDIN.

OPTIONS

       -i, --show-ids
              Print all missing IDs to STDOUT.  If you don’t specify this option, only a summary is shown.

       -r, --check-relations
              Also check referential integrity of relations.  Without  this  option,  only  nodes  in  ways  are
              checked.

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 STDOUT and STDERR are detected to
              be 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 STDOUT and STDERR are 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.

MEMORY USAGE

       osmium  check-refs  will do the check in one pass through the input data.  It needs enough main memory to
       store all temporary data.

       Largest memory need will be about 1 bit for each node ID, that’s roughly 760 MB these days (spring 2019).
       With the --check-relations/-r option memory use will be a bit bigger.

DIAGNOSTICS

       osmium check-refs exits with exit code

       0      if all references are satisfied

       1      if there was an error processing the data or some references were not satisfied, or

       2      if there was a problem with the command line arguments.

SEE ALSO

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

       • Osmium website (https://osmcode.org/osmium-tool/)

COPYRIGHT

       Copyright (C) 2013-2019 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 https://osmcode.org/contact.html

AUTHORS

       Jochen Topf <jochen@topf.org>.

                                                     1.11.1                                 OSMIUM-CHECK-REFS(1)