Letter H
heme: Console hex editor
ht: File editor, viewer and analyzer for text, binary and executables
hercules: Hercules S/370, ESA/390, and z/Architecture emulator
html2ps: HTML to PostScript converter
hammerhead: Web server stress testing tool
heartbeat: Heartbeat subsystem for High-Availability Linux
honeyd: Honeypot daemon
hping: Command-line oriented TCP/IP packet assembler/analyzer
htpdate: HTTP based time synchronization tool
httperf: Web server benchmark
httping: Ping alike tool for http requests
http-replicator: Replicating HTTP proxy server
httptunnel: Tunnels tcp/ip connections over http
hunt: TCP hijacking tool
hymn: Hymn allows you to free your iTunes purchases
hnb: Hierarchical notebook
hardinfo: Displays information about your hardware and operating system
hardlink: Tool to hardlink duplicate files in a directory tree
hddtemp: Display the temperature of harddisks
htop: Interactive process viewer
hawknl: Portable network library
hk_classes: C++ library for rapid development of database applications
hardlink++: Rewrite in C++ of the hardlink utility
hlfl: High-Level Firewall Language
hotswap: Hotswap peripherals in portable computers
havp: HTTP anti-virus proxy filter
hdapsd: HDAPS (Hard Disk Active Protection System) daemon
Hermes: Pixel format conversion library
hackedbox: The bastard son of Blackbox, a small and fast Window Manager
hardware-monitor-applet: GNOME Applet for hardware monitoring
hardware-monitor-applet: GNOME Applet for hardware monitoring