Provided by: yaz_3.0.34-2_i386
yaz-client - Z39.50/SRU client for implementors
yaz-client [-a filename] [-b filename] [-c filename] [-d dump]
[-f cmdfile] [-k size] [-m filename] [-p addr] [-q filename]
[-u auth] [-v level] [-xV] [addr]
yaz-client is a Z39.50/SRU client (origin) with a simple command line
interface that allows you to test behavior and performance of Z39.50
targets and SRU servers.
If the addr is specified, the client creates a connection to the
Z39.50/SRU target at the address given.
When yaz-client is started it tries to read commands from one of the
· Command file if it is given by option -f.
· .yazclientrc in current working directory.
· .yazclientrc in the user´s home directory. The value of the HOME
is used to determine the home directory. Normally, HOME is only set
on POSIX systems such as Linux, FreeBSD, Solaris.
If specified, logging of protocol packages will be appended file
given. If filename is specified as -, the output is written to
If specified, YAZ will dump BER data in readable notation to the
file specified. If filename is specified as - the output is written
If specified, CCL configuration will be read from the file given.
If specified, YAZ will dump BER data for all PDUs sent and received
to individual files, named dump.DDD.raw, where DDD is 001, 002,
Reads commands from cmdfile. When this option is used, YAZ client
does not read .yazclientrc from current directory or home
Sets preferred messages and maximum record size for Initialize
Request in kilobytes. Default value is 1024 (1 MB).
If specified, retrieved records will be appended to the file given.
If specified, the client will use the proxy at the address given.
YAZ client will connect to a proxy on the address and port given.
The actual target will be specified as part of the InitRequest to
inform the proxy about actual target.
If specified, CQL configuration will be read from the file given.
If specified, the auth string will be used for authentication.
Sets the LOG level to level. Level is a sequence of tokens
separated by comma. Each token is a integer or a named LOG item -
one of fatal, debug, warn, log, malloc, all, none.
Prints YAZ version.
Makes the YAZ client print hex dumps of packages sent and received
on standard output.
The YAZ client accepts the following commands.
Opens a connection to a server. The syntax for zurl is the same as
described above for connecting from the command line.
Quits YAZ client
Sends a Search Request using the query given. By default the query
is assumed to be PQF. See command querytype for more information.
Deletes result set with name setname on the server.
base base1 base2 ...
Sets the name(s) of the database(s) to search. One or more
databases may be specified separated by blanks. This commands
overrides the database given in zurl.
Fetches records by sending a Present Request from the start
position given by start a number of records given by number. If
start is not given, then the client will fetch from position of the
last retrieved record plus 1. If number is not given, then one
record will be fetched at a time.
Scans database index for a term. The syntax resembles the syntax
for find. If you want to scan for the word water you could write
but if you want to scan only in, say the title field, you would
scan @attr 1=4 water
setscan set term
Scans database index for a term within a result set. This is
similar to the scan command but has a result set as its first
Sets preferred position for scan. This value is used in next scan.
By default position is 1.
Sets number of entries to be returned by scan. Default number of
entries is 20.
Set step-size for scan. This value is used in next scan sent to the
target. By default step-size is 0.
Sorts a result set. The sort command takes a sequence of
space-separated sort specifications, with each sort specification
consisting of two space-separated words (so that the whole
specification list is made up of an even number of words). The
first word of each specification holds a field (sort criterion) and
the second holds flags. If the sort criterion includes = it is
assumed that the SortKey is of type sortAttributes using Bib-1: in
this case the integer before = is the attribute type and the
integer following = is the attribute value. If no = is in the
criterion it is treated as a sortfield of type InternationalString.
The flags word of each sort specification must consist of s for
case sensitive or i for case insensitive, and < for ascending order
or > for descending order.
Same as sort but stores the sorted result set in a new result set.
Sets up a authentication string if a server requires authentication
(v2 OpenStyle). The authentication string is first sent to the
server when the open command is issued and the Z39.50 Initialize
Request is sent, so this command must be used before open in order
to be effective. A common convention for the authopen string is
that the username - and password is separated by a slash, e.g.
sru method version
Selects SRU method and version. Must be one of POST, GET, SOAP
(default). Version should be either 1.1 or 1.2. Other versions are
allowed - for testing purposes (version negotiation with SRU
This command displays status and values for many settings.
Sets the limit for when no records should be returned together with
the search result. See the
Z39.50 standard  for more details.
Sets the limit for when all records should be returned with the
search result. See the
Z39.50 standard  for more details.
Sets the number of records should be returned if the number of
records in the result set is between the values of lslb and ssub.
Z39.50 standard  for more details.
Displays the values of lslb, ssub and mspn.
Switches named result sets on and off. Default is on.
Sends a Trigger Resource Control Request to the target.
Sets the preferred transfer syntax for retrieved records.
yaz-client supports all the record syntaxes that currently are
Z39.50 Standard  for more details. Commonly used records
syntaxes include usmarc, sutrs, grs1 and xml.
Sets the element set name for the records. Many targets support
element sets are B (for brief) and F (for full).
Sends a Z39.50 Close APDU and closes connection with the peer
Sets the query type as used by command find. The following is
supported: prefix for Prefix Query Notation (Type-1 Query); ccl for
CCL search (Type-2 Query), cql for CQL (Type-104 search with CQL
OID), ccl2rpn for CCL to RPN conversion (Type-1 Query). cql2rpn
for CQL to RPN conversion (Type-1 Query).
Sets attribute set OID for prefix queries (RPN, Type-1).
Sets reference ID for Z39.50 Request(s).
itemorder type no
Sends an Item Order Request using the ILL External. type is either
1 or 2 which corresponds to ILL-Profile 1 and 2 respectively. The
no is the Result Set position of the record to be ordered.
update action recid doc
Sends Item Update Request. The action argument must be the action
type: one of insert, replace, delete and update. The second
argument, recid, is the record identifier (any string). Third
argument which is optional is the record document for the request.
If doc is a quoted string (double quotes) the string content is
used verbatim. If doc is not a quoted string, it is assumed to be a
filename which is read, then sent as the docuemnt content. If doc
is omitted, the last received record (as parf of present response
or piggybacked search response) is used for the update.
Executes list of commands from file filename, just like source on
most UNIX shells. A single dot (.) can be used as an alternative.
Executes command args in subshell using the system call.
The push_command takes another command as its argument. That
command is then added to the history information (so you can
retrieve it later). The command itself is not executed. This
command only works if you have GNU readline/history enabled.
Sets that APDU should be logged to file filename. Another way to
achieve APDU log is by using command-line option -a.
Specifies whether YAZ client automatically reconnect if target
closes connection (Z39.50 only).
flag must be either on or off.
Specifies whether YAZ client should wait for response protocol
packages after a request. By default YAZ client waits (on) for
response packages immediately after a command (find, show) has been
issued. If off is used, YAZ client does not attempt to receive
packages automatically. These will have to be manually received
when command wait_response is used.
flag must be either on or off.
Specifies that all retrieved records should be appended to file
filename. This command does the thing as option -m.
Specifies schema for retrieval. Schema may be specified as an OID
for Z39.50. For SRU, schema is a simple string URI.
charset negotiationcharset [displaycharset] [[marccharset]]
Specifies character set (encoding) for Z39.50 negotiation / SRU
encoding and/or character set for output (terminal).
negotiationcharset is the name of the character set to be
negotiated by the server. The special name - for negotiationcharset
specifies no character set to be negotiated.
If displaycharset is given, it specifies name of the character set
of the output (on the terminal on which YAZ client is running). To
disable conversion of characters to the output encoding, the
special name - (dash) can be used. If the special name auto is
given, YAZ client will convert strings to the encoding of the
terminal as returned by nl_langinfo call.
If marcharset is given, it specifies name of the character set of
retrieved MARC records from server. See also marcharset command.
Since character set negotation takes effect in the Z39.50
Initialize Request you should issue this command before command
open is used.
MARC records are not covered by Z39.50 character set negotiation,
so that´s why there is a separate character that must be known in
order to do meaningful converson(s).
Specifies character set for negotiation (Z39.50). The argument is
the same as second argument for command charset.
Specifies character set for output (display). The argument is the
same as second argument for command charset.
Specifies character set for retrieved MARC records so that YAZ
client can display them in a character suitable for your display.
See charset command. If auto is given, YAZ will assume that
MARC21/USMARC is using MARC8/UTF8 and ISO-8859-1 for all other MARC
variants. The charset argument is the same as third argument for
Specifies character set for query terms for Z39.50 RPN queries and
Z39.50 Scan Requests (termListAndStartPoint). This is a pure
client-side conversion which converts from displayCharset to
Specifies that CCL fields should be read from file file filename.
This command does the thing as option -c.
Specifies that CQL fields should be read from file file filename.
This command does the thing as option -q.
register_oid name class OID
This command allows you to register your own object identifier - so
that instead of entering a long dot-notation you can use a short
name instead. The name is your name for the OID, class is the
class, and OID is the raw OID in dot notation. Class is one appctx,
absyn, attet, transyn, diagset, recsyn, resform, accform, extserv,
userinfo, elemspec, varset, schema, tagset, general. If you´re in
doubt use the general class.
register_tab command string
This command registers a TAB completion string for the command
This command makes YAZ client sleep (be idle) for the number of
wait_response [ number]
This command makes YAZ client wait for a number of response
packages from target. If number is omitted, 1 is assumed.
This command is rarely used and is only useful if command
set_auto_wait is set to off.
xmles OID doc
Sends XML Extended Services request using the OID and doc given.
This command sets Z39.50 version for negotiation. Should be used
before open. By default 3 (version 3) is used.
options op1 op2..
This command sets Z39.50 options for negotiation. Should be used
The following options are supported: search, present, delSet,
resourceReport, triggerResourceCtrl, resourceCtrl, accessCtrl,
scan, sort, extendedServices, level_1Segmentation,
level_2Segmentation, concurrentOperations, namedResultSets,
encapsulation, resultCount, negotiationModel, duplicationDetection,
queryType104, pQESCorrection, stringSchema.
The simplest example of a Prefix Query would be something like
f "donald knuth"
In those queries no attributes was specified. This leaves it up to the
server what fields to search but most servers will search in all
fields. Some servers does not support this feature though, and require
that some attributes are defined. To add one attribute you could do:
f @attr 1=4 computer
where we search in the title field, since the use(1) is title(4). If we
want to search in the author field and in the title field, and in the
title field using right truncation it could look something like this:
f @and @attr 1=1003 knuth @attr 1=4 @attr 5=1 computer
Finally using a mix of Bib-1 and GILS attributes could look something
f @attrset Bib-1 @and @attr GILS 1=2008 Washington @attr 1=21 weather
1. Z39.50 standard
2. Z39.50 Standard