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I can see that I've got a terminal buffer open by running :ls R which finds all buffers with a running terminal job, but I don't know how to capture just the buffer number.

The closest I can get is echo bufnr("cmd.exe") because the buffer name has the command the terminal is using. This isn't crossplatform though.

bufnr("R") doesn't seem to search the flags the same was :ls R does.

2 Answers 2

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  1. By :h 'buftype'

    echo filter(map(getbufinfo(), 'v:val.bufnr'), 'getbufvar(v:val, "&buftype") is# "terminal"')
    
  2. By :h getwininfo()

     echo uniq(map(filter(getwininfo(), 'v:val.terminal'), 'v:val.bufnr'))
    
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  • Thanks for these! Makes sense there isn't a builtin way to get a terminal buffer's number directly given how you can have so many Commented Jun 10, 2020 at 0:02
  • Which one would be faster? just curious...
    – codepoet
    Commented Jan 26, 2021 at 11:07
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You can do this now directly using term_list():

echo term_list()

This was introduced by Bram in v8.0.0803 (commit c6df10e5d (patch 8.0.0804: terminal window functions not yet implemented, 2017-07-29), which misidentifies the patch; the tag and change are correct).

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  • 2
    Welcome to Vi and Vim! Noting in which versions this is available would be useful; you can edit to add this information.
    – D. Ben Knoble
    Commented Apr 28 at 23:44
  • @D.BenKnoble I couldn't find an explicit mention of term_list() in any changelog, so it might actually have been introduced together with all the other terminal functions in 8.1
    – DaviD.
    Commented Apr 30 at 12:24
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    Using git log -S term_list gave me v8.0.0803 (which the commit wrongly identifies as 8.0.0804; the patch number is correct in the changes, though).
    – D. Ben Knoble
    Commented Apr 30 at 21:32

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