The jfs application is just a wrapper around the j:fs procedure in the jfs.tcl library. It's intended to make it easy to ask the user to select a file from shell scripts, windowmanager menus, etc.
This help file describes jfs version 4.0/4.0.
Copyright and contact information is available in the jstools documentation.
jfs [options]
Invoking jfs brings up a file selection panel with a listbox and entry widget that lets the user select a file. There are several options that control the behaviour and appearance of the file selection panel; they are described in the documentation for the j:fs procedure in the jfs.tcl library.
Both prompt and title are localisable.
play `jfs -prompt "Play what sound file?" -directory /data/sounds`