Yasm
Complete rewrite of the NASM assembler.
Yate
Yet Another Telephony Engine. YAVR
Antivirus recipe for procmail. Yaze
CP/M v2.2 emulator designed to run on Unix;. yEd
Generates high-quality diagrams. Yelp
Help browser for GNOME. YIFF
Sound Server for UNIX games and applications. Yoper
Fast, stable and desktop oriented operating system. YorTracer
Handy network trace program. YouGrabber
YouTube.com video downloader. youtube-dl
Command-line program to download videos from YouTube.com. YPLib
YPLib manages your personal library and reminds you when books are due. Ytree
Nifty filemanager similar to xtree. yudit
Unicode text editor.
Yum
Automatic updater and rpm package installer/remover. ZABBIX
Monitoring solution. ZAngband
Freeware computer role playing game. Zarafa
MS Exchange alternative for Linux mailservers. Zatacka
Arcade multiplayer game for 2-6 players. zdisk
Rescue system on one floppy disk. Zend Framework
Php development framework. Zenwalk
Linux distribution based on Slackware. zgsmplay
Curses-based real-time GSM file player. Zgv
Full-featured picture viewer for VGA/SVGA displays.