Here's a utility to import users from the specified LDAP server. The usage is a pretty simple:

$ get_ldap_users import settings.json output.csv

Use the following command for more info:

$ get_ldap_users -h

All settings and domain fields' bindings could be customized using settings file which should be in a JSON format. Run the following to save defaults to the settings.json file:

$ get_ldap_users gen-defaults settings.json

Parameter field_bindings should contain values in the following format:

{field_internal_name}: [ {field-order}, {domain-field-name} ]

Note, that you can override username/password from the command line. If the password is * (whether in the settings file or in command line parameter) it will be requested interactively.