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ORTHANC(1) User Commands ORTHANC(1)


Orthanc - Lightweight, RESTful DICOM server for healthcare and medical research




Orthanc, lightweight, RESTful DICOM server for healthcare and medical research.

The "CONFIGURATION" argument can be a single file or a directory. In the case of a directory, all the JSON files it contains will be merged. If no configuration path is given on the command line, a set of default parameters is used. Please refer to the Orthanc homepage for the full instructions about how to use Orthanc <>.

Command-line options:

display this help and exit
directory where to store the log files (by default, the log is dumped to stderr)
file where to store the log of Orthanc (by default, the log is dumped to stderr)
create a sample configuration file and exit
print the supported error codes and exit
be verbose in logs
highest verbosity in logs (for debug)
allow Orthanc to upgrade the version of the database (beware that the database will become incompatible with former versions of Orthanc)
Don't restart the jobs that were stored during the last execution of Orthanc
output version information and exit

Exit status:

0 if success,

-1 if error (have a look at the logs).


Written by Sebastien Jodogne <>


Copyright © 2012-2016 Sebastien Jodogne, Medical Physics Department, University Hospital of Liege (Belgium)
Copyright © 2017-2019 Osimis S.A. (Belgium) Licensing GPLv3+: GNU GPL version 3 or later <>, with OpenSSL exception.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.

March 2019 Orthanc 1.5.6