ldifsearch is a Perl script which allows you use the usual LDAP filters on LDIF files. The commandline options are similar to OpenLDAP's ldapsearch. It depends on the excellent Net::LDAP module.
Supported options include
-f => Input file (uses stdin otherwise)
-b => Specify base to which the filter is applied
-s => Specify the scope (sub, base or one)
As of now, the operators allowed in the filter are eq, and, or, not, presence and substrings. Support for <=, >=, etc is pending. If you'd like more features, file an issue!