I just use :w !sudo tee % when that happens. I don't come across that situation enough to justify a mapping, and the command is easy to reinvent when needed.
w <file> writes to a file, and can be redirected to an external program's stdin if file is !<command>
sudo tee <file> takes its input and writes it to both stdout and file.
% is vim shorthand for the file open in this buffer.
Btw: sudo -e some_file. Try it.
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I just use
:w !sudo tee %when that happens. I don't come across that situation enough to justify a mapping, and the command is easy to reinvent when needed.w <file>writes to a file, and can be redirected to an external program's stdin if file is!<command>sudo tee <file>takes its input and writes it to both stdout and file.%is vim shorthand for the file open in this buffer.Btw:
sudo -e some_file. Try it.