Letter: U
- udev-039-10.10.EL4: A userspace implementation of devfs
- umb-scheme-3.2-35: An implementation of the Scheme programming language.
- units-1.80-10: A utility for converting amounts from one unit to another.
- unix2dos-2.2-24.1: unix2dos - UNIX to DOS text file format converter
- unixODBC-2.2.9-1: A complete ODBC driver manager for Linux.
- unixODBC-devel-2.2.9-1: Development files for programs which will use the unixODBC library.
- unixODBC-kde-2.2.9-1: KDE driver manager components for ODBC.
- unzip-5.51-7: A utility for unpacking zip files.
- up2date-4.4.50-4: Determines which system packages need to be updated via RHN.
- up2date-gnome-4.4.50-4: A GUI interface for Update Agent.
- urlgrabber-2.9.6-1: A high-level cross-protocol url-grabber
- urw-fonts-2.2-6.1: Free versions of the 35 standard PostScript fonts.
- usbutils-0.11-6.1: Linux USB utilities.
- usermode-1.74-1: Tools for certain user account management tasks.
- usermode-gtk-1.74-1: Graphical tools for certain user account management tasks.
- utempter-0.5.5-5: A privileged helper for utmp/wtmp updates.
- util-linux-2.12a-16.EL4.12: A collection of basic system utilities.
- uucp-1.07-3: The uucp utility for copying files between systems.