Can I break the long line in emacs (non windows) to the next line?

With emacs (non windows), I see '$' mark at the end of the line when the terminal width is narrow. Is there a way to break the long line to 开发者_如何学编程the next line instead of showing the '$' mark?

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M-x auto-fill-mode works fine for text-mode, but with org-mode, the $ mark remains with the auto-fill-mode.

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You can get emacs to break long lines into multiple shorter lines with M-x fill-paragraph or M-x fill-region. You can also make this the default behavior with M-x auto-fill-mode.

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You can disable line truncation with M-x set-variable truncate-lines nil.

You can also put in your .emacs (setq-default truncate-lines nil) to have that setting by default.

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You can customize the word-wrap variable to visually wrap lines. This should be similar to longlines-mode, except it would use the buffer width rather than the fill column for wrapping.

You can alternatively use visual-line-mode to both enable word wrapping, and also "Redefine simple editing commands to act on visual lines, not logical lines", which addresses a point that nominolo mentioned.

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Set it for all buffers:

(setq truncate-lines nil)

Set it just for specific mode(org-mode for instance):

(add-hook 'org-mode-hook (lambda () (setq truncate-lines nil)))

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For the current session only use command

M-x toggle-truncate-lines

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Setting truncate-lines to nil will break long lines, but if press C-n or downarrow the cursor will jump to the next physical line, not the position displayed below the cursor.

When working with Tex, I usually switch on M-x longlines-mode. It has its quirks, but it works reasonably well.