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This question already has an answer here:

I have seen CTRL@ being used in Insert Mode in a VimGolf challenge. In this scenario it inserts the text that was last typed and switches to Normal Mode.

However, I wonder if this is the real purpose of this binding or just a side effect, so I tried to find information on what it does but found nothing on :help or Google.

So, the question is: Where can I find documentation about CTRL@?

marked as duplicate by muru May 13 '16 at 14:00

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    (point 8 in romainl's answer) – muru May 13 '16 at 14:01
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From :h i_CTRL-@:

CTRL-@ Insert previously inserted text and stop insert.

Also the mappings existing in insert mode are referenced in :h insert.txt

  • Oops, I've been searching :h C-@. I feel a bit ashamed now. Thanks! – Cristian Lupascu May 13 '16 at 9:56
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    A lot of help topic begins with CTRL ;-) – statox May 13 '16 at 9:58

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