I want to re-install spacemacs, since something doesn't work and I don't want to spent on fix it. But how to backup the bookmarks of the spacemacs, even better also backup the most recent open file list.
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Spacemacs saves the bookmarks in ~/.emacs.d/.cache/bookmarks, and the recent files lise in ~/.emacs.d/.cache/recentf. You can copy these two files somewhere outside of ~/.emacs.d, and copy them back in after re-installing.
In fact, there might be more files in ~/.emacs.d/.cache that you'd like to save. I suggest backing up the entire ~/.emacs.d/.cache and restoring what you miss after re-installation.
For completeness, I'll mention that the locations of these two files are controlled by the variables bookmark-default-file and recentf-save-file.
