CDDBD.sh is a shellscript speaking the CDDB Protocol version 1 without enhancements and read only. CDDBD.sh allows to query a local database on a filesystem that was filled with entries using such programs like xmcd or kscd. CDDBD.sh was developed to be used in a local or home network and not to serve a WAN.
DSWIM is a powerful informational tool for Debian's packaging system. Designed with an integrated approach it combines the functionality found in several other programs and scripts. This provides users with a centralized approach for querying the installation, allowing programmers the liberty of writing smaller and simpler code.
xdata implements an interface to arbitrary key-value pairs which are accessible to simple shell and Perl programs. Applications for this include to-do lists, contact databases, browser bookmarks, and anything else which requires small pieces of data to be referenced by keys. xdata stores timestamps for the data it manages, and comes with a program to synchronise databases among cooperating hosts. This allows you to propagate information among hosts in a transparent fashion (creations, updates, and deletes are correctly handled). xdata consists of a set of shell-level utilities and a Perl module.
RefDB is a reference database and bibliography tool for SGML, XML, and LaTeX documents. Command-line tools allow interactive or scriptable access to the data which are stored in a SQL database. RefDB can also be accessed through a Web interface, a SRU interface, or via editor extensions (Emacs/vim). Libraries for Perl and PHP are available for programmers. RefDB provides sophisticated character encoding handling, using Unicode by default.
kshSQL is a conversion of shql into Korn shell. It runs 30%-40% faster than shql. Like its Bourne shell counterpart, kshSQL is a database management system with an "Ingres"-like interface. It reads SQL commands interactively and executes those commands by creating and manipulating Unix files.
MP3DB2 is a collection of bash scripts for keeping track of large MP3 collections. It will retrieve song information from the filenames and ID3 tags of a directory or CD of MP3s and store them in a local database. It then allows you to search any of the fields, generate a master listing of all your complete albums, see the size of your entire collection, and more.