我使用的是默认 gnome 的 Ubuntu 17.10。出于某种原因，Dolphin 成为了我的默认文件管理器，我无法切换回 Nautilus。我检查了所有 mimeapps.list 的出现，它们都配置为使用 Nautilus。我可能遗漏了什么？
$ locate mimeapps.list
/home/memo/.config/mimeapps.list
/home/memo/.local/share/applications/mimeapps.list
/snap/core/3440/usr/share/applications/mimeapps.list
/snap/core/3604/usr/share/applications/mimeapps.list
/snap/core/3748/usr/share/applications/mimeapps.list
/usr/share/applications/mimeapps.list
这些都包括鹦鹉螺
$ for f in `locate mimeapps.list`; do grep -i nautilus $f; done
inode/directory=nautilus.desktop
application/x-gnome-saved-search=nautilus.desktop
inode/directory=nautilus-folder-handler.desktop;
inode/directory=nautilus.desktop
application/x-gnome-saved-search=nautilus.desktop
也没有任何地方提到海豚
$ for f in `locate mimeapps.list`; do grep -i dolphin $f; done
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有什么想法吗？谢谢！