vi-mode: ^D logs you out.

[newhook]

It should erase to the end of line.

[faho]

It logs out, yes, but why should it "erase to the end of line"? That's what "D" (i.e. shift and "d") should do, in normal mode, and it does.

What ^D (i.e. "\cd" in fish's notation and "C-d" in emacs') does in vim (with an empty vimrc) is in normal mode scroll down a page/screen, keeping the cursor at the beginning of the line. In insert mode, it shifts the current line to the left. Neither of which is particularly applicable to a shell.

What does it do in e.g. zsh's vi mode?

[newhook]

Yes, sorry you are completely correctly. However, what ^D does in bash is not boot you out :) It tries to run the current command.

[faho]

Okay, in zsh, after bindkey -v, in both input and normal mode ^D lists options for what's at the cursor (though I can't figure out how to use it). bindkey calls it "list-choices".

In bash's vi-mode (set -o vi), in both ^D is essentially the same as return/enter - it executes the current line. (Edit: readline calls it "vi-eof-maybe", though I can't find documentation)

(All this is through trial with bash 4.3.39, readline 6.3.008, zsh 5.0.8 on archlinux)

So now that we've found out that apparently there's no standard way to handle "^D" in a shell vi-mode, we should think about what it should do. What's a nice thing to have bound to ^D?

[newhook]

Not log you out! :)

[faho]

How about just doing the same thing it does in emacs mode? ("delete-or-exit", though I can only get it to do the "or-exit" part, it does nothing instead of deleting if the line isn't empty)

See #2255 - if we don't have a compelling alternative, the vi bindings should do what the default bindings do.

[onnodb]

Personally, I really like ^D for logging out. For completeness: ^D actually inserts an "end-of-file" character, which is interpreted by some shells as an exit or logout command. In Bash, it's actually also a known behavior, albeit a behavior that's disabled in most default configurations by setting set -o ignoreeof in BASHRC.

[pickfire]

^D in zsh vi-mode:

• Logs you out if no command is given.
• Complete the command if a command is given.

^D in bash vi-mode:

• Logs you out if no command is given .
• Execute the command if a command is given.

[krader1961]

Yes, [ctrl-D] should only cause the shell to exit in vi normal (i.e., command rather than insert) mode if the command line is empty. Why aren't we fixing such trivial issues sooner?