In a C-shell, (tcsh, zsh, csh), a built-in command called
bindkey will display all the bindings for various navigation and selection shortcuts. While the command does not exist in the other shells, at least several bindings work in /bin/bash and /bin/sh that I've tested.
bindkeys gives you a "command not found" error, enter
tcsh, and try again at the new prompt. You can redirect the output from bindkey to a file which you can reference later. Once you're finished with tcsh, type
exit and you'll go back to your regular command line shell.
Many of the bindings listed also work in TextEdit.app, or on the URL bar of web browsers.
^ means Ctrl, and
^] means Esc. Not all of the key bindings are applicable in every application.