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Using the Nano text editor, I'm trying to save and exit a file. I already have the file named.

I click Ctrl+X to exit. And then I click Y because I want to save the file. It asks for file to write, I pressed Enter to use the default name because its already named.

The problem is I get this message.

[Error writing /filename: Permission denied]

What am I doing wrong?

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Well, you don't have the rights to write that file. Use

sudo nano [filename]
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    So there's no way to issue a sudo save while editing the document? i.e. like vi's :wq! ? So if you've spent a while editing a document without realising it's protected, there's no way to save it? Bit of an oversight. – Nathan Hornby Apr 18 '17 at 13:32
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    You can save to a different filename - hit Ctrl-X, Y, then change to a different filename to write to. That way you can sudo mv it after you edit – dGRAMOP Mar 23 '19 at 18:10
  • This also works if you open a file in Nano and see the message 'file is unwritable' – Chris Halcrow Dec 10 '19 at 22:52

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