BufUnload Before unloading a buffer. ... NOTE: When this autocommand is executed, the current buffer "%" may be different from the buffer being unloaded "<afile>". Don't change to another buffer or window, it will cause problems!
If the current buffer isn't the deleted/unloaded buffer, then can I access b: variables? I have a buffer that has a temp file and if the buffer goes away, I want to clean up the temp file.
let b:example_tempfile = tempname() augroup example au! au BufUnload <buffer> call delete(b:example_tempfile) augroup END