用 vim 打开没有写权限的文件而忘记用 sudo 时，文件变成 read-only

这时候用 :w!, SHIFT+ZZ，或者 qw! 都无法保存

:w !sudo tee %

:w : Write a file.可以将文件写入，文件仍然是只读模式，通过 :q! 退出

• !sudo : Call shell sudo command.
• tee : The output of the vi/vim write command is redirected using tee.
• % : Triggers the use of the current filename.

Simply put, the ‘tee’ command is run as sudo and follows the vi/vim command on the current filename given.

 

 

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