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As you said in your last comment, by default fzf changes the configuration of your shell. For example, if you use bash, it will add the following line in your ~/.bashrc:

As you said in your last comment, by default fzf changes the configuration of your shell. For example, if you use bash, it will add the following line in your ~/.bashrc:

I may have missed some, but currently it seems fzf installs 4 key bindings. They use the key sequences C-i (same as Tab), C-r, C-t and M-c. They are bound to the following functions:

Currently, I found 4 key bindings executing functions containing the fzf keyword in their name. They use the key sequences C-i (same as Tab), C-r, C-t and M-c. They are bound to the following functions:

Unfortunately, the key bindings may override default readline functions.
For example, fzf binds the function fzf-file-widget to C-t. This key is usually used by readline to execute the transpose-chars function.

I'm not sure, but I think it should display most or all the readline key bindings. If you're looking for the name of the readline function bound to the C-t key, in the Vim buffer, you would search \\C-t. And if you were looking for the one bound to M-c (meta / alt key), you would search \\ec (\e stands for the escape key and it seems M-c produces the same keycodes as escape + c).

Unfortunately, the key bindings may override default readline functions.
For example, fzf binds the function fzf-file-widget to C-t. This key is usually used by readline to execute the transpose-chars function.

I'm not sure, but I think it should display most or all the readline key bindings. If you're looking for the name of the readline function bound to the C-t key, in the Vim buffer, you would search \\C-t. And if you were looking for the one bound to M-c (meta / alt key), you would search \\ec (\e stands for the escape key and it seems M-c produces the same keycodes as escape + c).

You can do the same thing in zsh by looking at the output of the bindkey command. But this time, ^[ stands for the meta/alt modifier key, while a single caret (^) character stands for the control key.

I may have missed some, but currently it seems fzf installs 4 key bindings. They use the key sequences C-i (same as Tab), C-r, C-t and M-c. They are bound to the following functions:

C-i    fzf-completion
C-r    fzf-history-widget
C-t    fzf-file-widget
M-c    fzf-cd-widget

On my system, originally, readline (the library used by bash to edit the command line) bound those keys to these functions:

C-i     complete
C-r     reverse-search-history
C-t     transpose-chars
M-c     capitalize-word

And zle (the line editor used by zsh), bound them to:

C-i     expand-or-complete
C-r     history-incremental-search-backward
C-t     transpose-chars
M-c     capitalize-word