ubc_monitor monitors resource usage in virtual servers run by OpenVz. Monitor /proc/user_beancounters and send an email to the systems administrator if failcnt has increased since last time ubc_monitor was run. ubc_monitor uses a file (by default ~/.ubc_monitor) to keep track of user_beancounter fail counts. When running without this file (such as the first run) any fail count except 0 will be reported.

A simple ruby interface to the Cisco UCS XMLAPI

'ulla' is a program for calculating environment-specific substitution tables from user providing environmental class definitions and sequence alignments with the annotations of the environment classes.

Beautiful graphs for one or multiple datasets. Can be used on websites or in documents.

umka has fixed a problem in the maccman's juggernaut gem, and this is just a build for that gem, https://github.com/umka/juggernaut_gem

'Uncertain' adds a Numeric class that encapsulates and handles numbers with uncertainty (e.g., 1.0 +/- 0.2).

This gem aims to improve support for Growl notification by ZenTest's autotest. It comes with a nice colored Ruby icon set and - for now - supports Cucumber by means of a workaround.

Unific is a ruby unification engine. A unification engine is an essential part of a logic programming environment (the whole logic programming environment this is taken from is available as the in-development Rulog[http://github.com/jimwise/rulog] (Ruby With Logic) gem), but can also be useful on its own as a pattern matching engine which can enforce consistency across multiple matches.

unisat - unisat.io lite helpers for full-text search in bitcoin ordinal inscriptions

This is a simple API wrapper of UnitHosting( http://www.unit-hosting.com/ ) .

gem install universe-devtools

universum - next generation ethereum 2.0 world computer runtime; run contract scripts / transactions in plain vanilla / standard ruby on the blockchain; update the (contract-protected / isolated) world states with plain vanilla / standard SQL

A small hodgepodge of neat little UNIX API things I like to have access to without shelling out.

upman - Update Manager in Ruby

An implementation of the UPnP protocol

Stub implementation for a UPnP ConnectionManager service. Currently has no implementation. Works great for a PlayStation 3.

A UPnP ContentDirectory service with some DLNA extensions. Currently this is a work in progress, and is only adequate for viewing images on a PlayStation 3.

A UPnP extension for Internet Gateway Devices

A UPnP MediaServer. Currently a work in progress. Only tested on a PlayStation 3.

Urban is a command line utility with an API to query definitions from Urban Dictionary.