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When Vim starts, it always opens buffers of last session too. That is to say, when I leave Vim by closing all windows, but do not explicitly close buffers (by :bd), those buffers will be opened next time Vim starts. How can I not open these buffers?

  • I find it irritating because sometimes I close Vim to edit files with other programs, or rename them. Since Vim keeps opening them, afterwards I reopen Vim, falsely thinking these files are not being opened, there will be swap files, which I must take time to deal with. – Violapterin Jun 29 '17 at 14:03
  • This is not the default behavior. Does it behave the same when you start Vim with vim -u NONE? – Tumbler41 Jun 29 '17 at 14:35
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    Oh... when I open with vim -u NONE, this no longer happens. I think I have to comment out my vimrc one by one, to debug the problem.... – Violapterin Jun 29 '17 at 15:50
  • what is your 'viminfo' setting? – Christian Brabandt Jun 29 '17 at 17:06
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    @Aminopterin There you have it: :h viminfo-% – Christian Brabandt Jun 29 '17 at 20:56
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This might be caused by the 'viminfo' setting containing the "%" item. If the "%" flag is included in your viminfo setting, this means:

When included, save and restore the buffer list. If Vim is started with a file name argument, the buffer list is not restored. If Vim is started without a file name argument, the buffer list is restored from the viminfo file. Quickfix ('buftype'), unlisted ('buflisted'), unnamed and buffers on removable media (viminfo-r) are not saved. When followed by a number, the number specifies the maximum number of buffers that are stored. Without a number all buffers are stored.

  • I think there should be best a warning that tells the user not to copy other's vimrc mindlessly XD Originally my vimrc was littered with whatever I copied from other people, in the very start of my learning Vim. That way, I had spent many hours debugging strange things. – Violapterin Jul 2 '17 at 14:21

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