error linux

E37: No write since last change (add ! to override)
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You tried to leave the vi  / vim editor with "q" despite of the fact that you made changes to the file you opened.

You have 2 options:

- enter "q!" to quit and discard the changes

- enter "wq!" to save the changes and quit
That message means you are trying to quit the vi editor without saving changes to the file.

If you want to quit without saving, do:


If you want to save the changes, do:

:wq! => save the file and quit forcefully.
:q! => Without save and quit forcefully


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Create a reliable backup. Make sure you always have dependable copies of your data so you can restore your entire system or individual files.

In command mode ZZ will also save & quit.
.. or :x
:w! -> make it overwrite unwritable file
thomaslijuAuthor Commented:
the shortcut key helped.

Thank you.
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