ldapsearch - LDAP search tool
ldapsearch [-n] [-u] [-v] [-k] [-K] [-t] [-A] [-L[L[L]]] [-M[M]]
[-d debuglevel] [-f file] [-D binddn] [-W] [-w passwd] [-y passwdfile]
[-H ldapuri] [-h ldaphost] [-p ldapport] [-P 2|3] [-b searchbase]
[-s base|one|sub] [-a never|always|search|find] [-l timelimit]
[-z sizelimit] [-O security-properties] [-I] [-Q] [-U authcid]
[-R realm] [-x] [-X authzid] [-Y mech] [-Z[Z]] filter [attrs...]
ldapsearch is a shell-accessible interface to the ldap_search(3)
ldapsearch opens a connection to an LDAP server, binds, and performs a
search using specified parameters. The filter should conform to the
string representation for search filters as defined in RFC 2254. If
not provided, the default filter, (objectClass=*), is used.
If ldapsearch finds one or more entries, the attributes specified by
attrs are returned. If * is listed, all user attributes are returned.
If + is listed, all operational attributes are returned. If no attrs
are listed, all user attributes are returned. If only 1.1 is listed,
no attributes will be returned.
-n Show what would be done, but don’t actually perform the search.
Useful for debugging in conjunction with -v.
-u Include the User Friendly Name form of the Distinguished Name
(DN) in the output.
-v Run in verbose mode, with many diagnostics written to standard
-k Use Kerberos IV authentication instead of simple authentication.
It is assumed that you already have a valid ticket granting
ticket. ldapsearch must be compiled with Kerberos support for
this option to have any effect.
-K Same as -k, but only does step 1 of the Kerberos IV bind. This
is useful when connecting to a slapd and there is no
x500dsa.hostname principal registered with your Kerberos Domain
-t Write retrieved non-printable values to a set of temporary
files. This is useful for dealing with values containing non-
character data such as jpegPhoto or audio.
-A Retrieve attributes only (no values). This is useful when you
just want to see if an attribute is present in an entry and are
not interested in the specific values.
-L Search results are display in LDAP Data Interchange Format
detailed in ldif(5). A single -L restricts the output to
LDIFv1. A second -L disables comments. A third -L disables
printing of the LDIF version. The default is to use an extended
version of LDIF.
-M[M] Enable manage DSA IT control. -MM makes control critical.
Sort the entries returned based on attribute. The default is not
to sort entries returned. If attribute is a zero-length string
(""), the entries are sorted by the components of their Dis-
tingished Name. See ldap_sort(3) for more details. Note that
ldapsearch normally prints out entries as it receives them. The
use of the -S option defeats this behavior, causing all entries
to be retrieved, then sorted, then printed.
Set the LDAP debugging level to debuglevel. ldapsearch must be
compiled with LDAP_DEBUG defined for this option to have any
Read a series of lines from file, performing one LDAP search for
each line. In this case, the filter given on the command line
is treated as a pattern where the first occurrence of %s is
replaced with a line from file. If file is a single - charac-
ter, then the lines are read from standard input.
-x Use simple authentication instead of SASL.
Use the Distinguished Name binddn to bind to the LDAP directory.
-W Prompt for simple authentication. This is used instead of spec-
ifying the password on the command line.
Use passwd as the password for simple authentication.
Use complete contents of passwdfile as the password for simple
Specify URI(s) referring to the ldap server(s).
Specify an alternate host on which the ldap server is running.
Deprecated in favor of -H.
Specify an alternate TCP port where the ldap server is listen-
ing. Deprecated in favor of -H.
Use searchbase as the starting point for the search instead of
Specify the scope of the search to be one of base, one, or sub
to specify a base object, one-level, or subtree search. The
default is sub.
Specify how aliases dereferencing is done. Should be one of
never, always, search, or find to specify that aliases are never
dereferenced, always dereferenced, dereferenced when searching,
or dereferenced only when locating the base object for the
search. The default is to never dereference aliases.
-P 2|3 Specify the LDAP protocol version to use.
wait at most timelimit seconds for a search to complete. A
timelimit of 0 (zero) or none means no limit. A server may
impose a maximal timelimit which only the root user may over-
retrieve at most sizelimit entries for a search. A sizelimit of
0 (zero) or none means no limit. A server may impose a maximal
sizelimit which only the root user may override.
Specify SASL security properties.
-I Enable SASL Interactive mode. Always prompt. Default is to
prompt only as needed.
-Q Enable SASL Quiet mode. Never prompt.
Specify the authentication ID for SASL bind. The form of the ID
depends on the actual SASL mechanism used.
Specify the realm of authentication ID for SASL bind. The form
of the realm depends on the actual SASL mechanism used.
Specify the requested authorization ID for SASL bind. authzid
must be one of the following formats: dn:<distinguished name> or
Specify the SASL mechanism to be used for authentication. If
it’s not specified, the program will choose the best mechanism
the server knows.
-Z[Z] Issue StartTLS (Transport Layer Security) extended operation. If
you use -ZZ, the command will require the operation to be suc-
If one or more entries are found, each entry is written to standard
output in LDAP Data Interchange Format or ldif(5):
# bjensen, example, net
cn: Barbara Jensen
If the -t option is used, the URI of a temporary file is used in place
of the actual value. If the -A option is given, only the "attribute-
name" part is written.
The following command:
ldapsearch -LLL "(sn=smith)" cn sn telephoneNumber
will perform a subtree search (using the default search base and other
parameters defined in ldap.conf(5)) for entries with a surname (sn) of
smith. The common name (cn), surname (sn) and telephoneNumber values
will be retrieved and printed to standard output. The output might
look something like this if two entries are found:
cn: John Smith
cn: John T. Smith
telephoneNumber: 1 555 123-4567
cn: Steve Smith
cn: Steve S. Smith
telephoneNumber: 1 555 765-4321
ldapsearch -LLL -u -t "(uid=xyz)" jpegPhoto audio
will perform a subtree search using the default search base for entries
with user id of "xyz". The user friendly form of the entry’s DN will
be output after the line that contains the DN itself, and the jpegPhoto
and audio values will be retrieved and written to temporary files. The
output might look like this if one entry with one value for each of the
requested attributes is found:
ufn: xyz, example, com
ldapsearch -LLL -s one -b "c=US" "(o=University*)" o description
will perform a one-level search at the c=US level for all entries whose
organization name (o) begins begins with University. The organization
name and description attribute values will be retrieved and printed to
standard output, resulting in output similar to this:
dn: o=University of Alaska Fairbanks,c=US
o: University of Alaska Fairbanks
description: Preparing Alaska for a brave new yesterday
description: leaf node only
dn: o=University of Colorado at Boulder,c=US
o: University of Colorado at Boulder
description: No personnel information
description: Institution of education and research
dn: o=University of Colorado at Denver,c=US
o: University of Colorado at Denver
description: Institute for Higher Learning and Research
dn: o=University of Florida,c=US
o: University of Florida
description: Warper of young minds
Exit status is zero if no errors occur. Errors result in a non-zero
exit status and a diagnostic message being written to standard error.
ldapadd(1), ldapdelete(1), ldapmodify(1), ldapmodrdn(1), ldap.conf(5),
ldif(5), ldap(3), ldap_search(3)
The OpenLDAP Project <http://www.openldap.org/>
OpenLDAP is developed and maintained by The OpenLDAP Project
(http://www.openldap.org/). OpenLDAP is derived from University of
Michigan LDAP 3.3 Release.
OpenLDAP 2.2.29 2005/10/04 LDAPSEARCH(1)
Man(1) output converted with