This is useful for using tee to just write to a file,
at the end of a pipeline,
without having to redirect to /dev/null
Example:
echo 'foo' | sudo tee -q /etc/foo;
is equivalent to the old (and ugly)
echo 'foo' | sudo tee /etc/foo >/dev/null;
Why don't you just do
echo foo > /etc/foo
or
sudo sh -c 'echo foo > /etc/foo' ?
I don't normally use sudo, so there might be some better way of using it.
Kind regards,
Philipp