SQLite/Ruby is a set of bindings to allow the SQLite (v 2.x) database to be used from Ruby scripts. It provides an object-oriented interface to all major functions of the SQLite API, including the create_function and create_aggregate functions. It also supports bind parameters, transactions, internal and external iterators, type translation in queries, and easy access to various pragmas.
Daemonize is a Ruby module derived from Perl's Proc:: Daemon module. It allows you to easily modify any existing Ruby program to run as a daemon. Converting a program to a daemon by hand is a relatively simple process; however, this module will save you the effort of repeatedly looking up the procedure, and it will also ensure that your programs are daemonized in the safest and most correct fashion possible.
HighLine was designed to ease the tedious tasks of doing console input and output with low-level methods like gets() and puts(). It provides a robust system for requesting data from a user, without needing to code all the error checking and validation rules and without needing to convert the typed Strings into what your program really needs.
ReferrerCop parses Apache log files and AWStats data files and removes entries for referring URLs that match a list of known referrer spammers. Logs can be run through ReferrerCop either before or after they're processed by AWStats (or before they're processed by any other log analyzer) to eliminate annoying referrer spam from Web statistics.