https://noosphere.tistory.com/81
[Linux] vim 수정중에 can't open file for writing
참고 https://stackoverflow.com/questions/8253362/etc-apt-sources-list-e212-cant-open-file-for-writing] /etc/apt/sources.list" E212: Can't open file for writing I am trying to edit sources.list using vi editor but getting the following error while saving
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