termscu(1) OFFIS DCMTK termscu(1) NAME termscu - DICOM termination SCU SYNOPSIS termscu [options] peer port DESCRIPTION The termscu application implements a Service Class User (SCU) for DCMTK's private Shutdown SOP Class. It tries to negotiate this private Shutdown SOP Class with a Service Class Provider (SCP) which (if this feature is imple- mented) will immediately shutdown after refusing the association. The ap- plication can be used to shutdown some of DCMTK's server applications. PARAMETERS peer hostname of DICOM peer port tcp/ip port number of peer OPTIONS general options -h --help print this help text and exit --version print version information and exit --arguments print expanded command line arguments -q --quiet quiet mode, print no warnings and errors -v --verbose verbose mode, print processing details -d --debug debug mode, print debug information -ll --log-level [l]evel: string constant (fatal, error, warn, info, debug, trace) use level l for the logger -lc --log-config [f]ilename: string use config file f for the logger network options IP protocol version: -i4 --ipv4 use IPv4 only (default) -i6 --ipv6 use IPv6 only -i0 --ip-auto use DNS lookup to determine IP protocol application entity titles: -aet --aetitle [a]etitle: string set my calling AE title (default: ECHOSCU) -aec --call [a]etitle: string set called AE title of peer (default: ANY-SCP) other network options: -pdu --max-pdu [n]umber of bytes: integer (4096..131072) set max receive pdu to n bytes (default: 16384) NOTES DICOM Conformance The termscu application supports the following SOP Classes as an SCU: PrivateShutdownSOPClass 1.2.276.0.7230010.3.4.1915765545.18030.917282194.0 LOGGING The level of logging output of the various command line tools and underly- ing libraries can be specified by the user. By default, only errors and warnings are written to the standard error stream. Using option --verbose also informational messages like processing details are reported. Option --debug can be used to get more details on the internal activity, e.g. for debugging purposes. Other logging levels can be selected using option --log-level. In --quiet mode only fatal errors are reported. In such very severe error events, the application will usually terminate. For more de- tails on the different logging levels, see documentation of module 'oflog'. In case the logging output should be written to file (optionally with log- file rotation), to syslog (Unix) or the event log (Windows) option --log- config can be used. This configuration file also allows for directing only certain messages to a particular output stream and for filtering certain messages based on the module or application where they are generated. An example configuration file is provided in <etcdir>/logger.cfg. COMMAND LINE All command line tools use the following notation for parameters: square brackets enclose optional values (0-1), three trailing dots indicate that multiple values are allowed (1-n), a combination of both means 0 to n val- ues. Command line options are distinguished from parameters by a leading '+' or '-' sign, respectively. Usually, order and position of command line options are arbitrary (i.e. they can appear anywhere). However, if options are mu- tually exclusive the rightmost appearance is used. This behavior conforms to the standard evaluation rules of common Unix shells. In addition, one or more command files can be specified using an '@' sign as a prefix to the filename (e.g. @command.txt). Such a command argument is replaced by the content of the corresponding text file (multiple white- spaces are treated as a single separator unless they appear between two quotation marks) prior to any further evaluation. Please note that a com- mand file cannot contain another command file. This simple but effective approach allows one to summarize common combinations of options/parameters and avoids longish and confusing command lines (an example is provided in file <datadir>/dumppat.txt). ENVIRONMENT The termscu utility will attempt to load DICOM data dictionaries specified in the DCMDICTPATH environment variable. By default, i.e. if the DCMDICT- PATH environment variable is not set, the file <datadir>/dicom.dic will be loaded unless the dictionary is built into the application (default for Windows). The default behavior should be preferred and the DCMDICTPATH environment variable only used when alternative data dictionaries are required. The DCMDICTPATH environment variable has the same format as the Unix shell PATH variable in that a colon (':') separates entries. On Windows systems, a semicolon (';') is used as a separator. The data dictionary code will at- tempt to load each file specified in the DCMDICTPATH environment variable. It is an error if no data dictionary can be loaded. COPYRIGHT Copyright (C) 2005-2025 by OFFIS e.V., Escherweg 2, 26121 Oldenburg, Ger- many. Version 3.7.0 Mon Dec 15 2025 termscu(1)
NAME | SYNOPSIS | DESCRIPTION | PARAMETERS | OPTIONS | NOTES | LOGGING | COMMAND LINE | ENVIRONMENT | COPYRIGHT
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