The fplan application is designed to assist general aviation pilots in creating flight plans for cross country flights in powered aircraft. It reads a planfile containing a description of the flight; departure and destination airports, navigation aids, intermediate waypoints, winds aloft, fuel consumption rates, and produces a flight plan including; wind corrected magnetic headings, distance, estimated time and fuel consumption for each leg, latitude, longitude and VOR fixes for each checkpoint, etc. A graphical preview of the flight is available on systems with X11 Windows and the XView Toolkit.
FPL (Frexx Programming Language) is an interpreting script/macro language shared library, designed to be flexible and easy inserted/embedded in any code or program. It is a complete script programming language very similar to C. The FPL library lets the software programmer define functions and variables that FPL should accept. The library will call a function in the software whenever any of these functions are used or variables are read in an FPL script program. FPL allows scripts to be in straight ASCII or bytecompiled for faster execution.
fping is a ping-like program which uses the Internet Control Message Protocol (ICMP) echo request to determine if a target host is responding. fping differs from ping in that you can specify any number of targets on the command line, or specify a file containing the lists of targets to ping. Instead of sending pings to one target until it times out or replies, fping will send out a ping packet and move on to the next target in a round-robin fashion.
FOX is a C++-based toolkit for GUI development. It includes a rich set of widgets and has powerful yet simple layout managers, MDI widgets, and mega-widgets. FOX incorporates support for XDND for drag and drop, X clipboard and X Selection, watching other I/O channels and sockets, timers and idle processing, object serialization and deserialization, a registry to save persistent settings, and 3D widgets using Mesa or OpenGL. FOX works on Linux, IRIX, Solaris, HP/UX, AIX, Tru64 Unix, Windows 9x,NT,2K (VC++, GNUWIN32, Borland, VisualAge C++), FreeBSD, and Sequent.