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Notes/tips/lessons learned on use of ldapsearch
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*   In its simplest form::
    
    # ldapsearch -x
    # extended LDIF
    #
    # LDAPv3
    # base <dc=example,dc=com> (default) with scope subtree
    # filter: (objectclass=*)
    # requesting: ALL
    #
    
    # example.com
    dn: dc=example,dc=com
    objectClass: dcObject
    objectClass: organization
    o: Example Company
    dc: example
    
    # admin, example.com
    dn: cn=admin,dc=example,dc=com
    objectClass: organizationalRole
    cn: admin
    
    # search result
    search: 2
    result: 0 Success
    
    # numResponses: 3
    # numEntries: 2
    
*   Notice, no config section::
    
    # ldapsearch -D cn=admin,cn=config -w mypwd -b cn=config
    [[ **HUGE** amount snipped ]]
    # search result
    search: 2
    result: 0 Success
    
    # numResponses: 19
    # numEntries: 18
    
*   So, need to trim that down a bit.  The format is 
    ``ldapsearch [ -x | -D ... ] -b ${base} ${filter} ${subfilter}``
    For instance::
    
    # ldapsearch -D cn=admin,cn=config -w 3pizda  -b cn=config dn | grep ^dn
    dn: cn=config
    dn: cn=schema,cn=config
    dn: cn={0}corba,cn=schema,cn=config
    dn: cn={1}core,cn=schema,cn=config
    dn: cn={2}cosine,cn=schema,cn=config
    dn: cn={3}duaconf,cn=schema,cn=config
    dn: cn={4}dyngroup,cn=schema,cn=config
    dn: cn={5}inetorgperson,cn=schema,cn=config
    dn: cn={6}java,cn=schema,cn=config
    dn: cn={7}misc,cn=schema,cn=config
    dn: cn={8}nis,cn=schema,cn=config
    dn: cn={9}openldap,cn=schema,cn=config
    dn: cn={10}ppolicy,cn=schema,cn=config
    dn: cn={11}collective,cn=schema,cn=config
    dn: olcDatabase={-1}frontend,cn=config
    dn: olcDatabase={0}config,cn=config
    dn: olcDatabase={1}monitor,cn=config
    dn: olcDatabase={2}bdb,cn=config
    
*   Now, if you wanted to find out what's in the bdb database config.  
    Notice that you use the RDN, not the full one::
    
    # ldapsearch -D cn=admin,cn=config -w 3pizda  -b cn=config 'olcDatabase={2}bdb'
    # extended LDIF
    #
    # LDAPv3
    # base <cn=config> with scope subtree
    # filter: olcDatabase={2}bdb
    # requesting: ALL
    #
    
    # {2}bdb, config
    dn: olcDatabase={2}bdb,cn=config
    objectClass: olcDatabaseConfig
    objectClass: olcBdbConfig
    olcDatabase: {2}bdb
    olcDbDirectory: /var/lib/ldap
    olcSuffix: dc=example,dc=com
    olcAddContentAcl: FALSE
    olcLastMod: TRUE
    olcMaxDerefDepth: 15
    olcReadOnly: FALSE
    [[snip]]
    
*   OK, so that's still alot of crap.  What if you want **just** the 
    dbdirectory::
    
    # ldapsearch -D cn=admin,cn=config -w 3pizda  -b cn=config 'olcDatabase={2}bdb' olcdbdirectory
    # extended LDIF
    #
    # LDAPv3
    # base <cn=config> with scope subtree
    # filter: olcDatabase={2}bdb
    # requesting: olcdbdirectory 
    #
    
    # {2}bdb, config
    dn: olcDatabase={2}bdb,cn=config
    olcDbDirectory: /var/lib/ldap
    
    # search result
    search: 2
    result: 0 Success
    
    # numResponses: 2
    # numEntries: 1