Frood is a Gtk/Perl LDAP client designed to work on LDAPv2 and LDAPv3 servers. You can extract data from a server by either searching (either by baseDN, scope, filter, attribute names, or attributes) or by browsing a hierarchial tree structure. Entries can be added, deleted, modified, or have their RDNs modified. LDIF files can be imported and exported. LDAPv3 schema can be edited.
fsv, the 3D File System Visualizer, allows you to view a collection of directories and files as three-dimensional geometry. It represents all or part of a filesystem as a collection of blocks of varying sizes, each labeled with a filename, and arranged in a manner consistent with the original directory structure. fsv can visualize any arbitrarily large collection of files, limited only by memory and hardware constraints. Program features include an integrated 2D interface, intelligent camera handling, and extensive use of animation. fsv requires OpenGL.
Ftwalk is a high level script programming language, very similar to awk, but greatly extended to include a richer type system, object-oriented features, 300+ built-in functions, extensibility through dynamic libraries, etc., which makes it roughly comparable to languages like Perl. It does file tree searches, and was originally used to implement selective redundant copy backup stores. It can be run interactively as a calculator.