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by ggm 1904 days ago
:w! Forces write even if the file exists, eg is chmod -r read-only.

:q! quits even if the buffer isn't saved.

:wq! Forces write and quits anyway.

It can't always work,you have to own the file and have the correct permissions for the directory. Sudo root it overrides the file/dir chmod mask constraints. It can't write over chflags locked files.