sed permission denied when overwriting file

Question

I am trying to use sed to overwrite my index.php file, but I am getting an error:

$ sed -i \'s@@

        

Answer 1

Really no great answers here. Sorry if thread is dead, it came up in google searches and nothing really answered the question. Although altendky's answer is sort of the same as mine... There IS a workaround...find a world writable directory, say /tmp

cp /etc/file_to_mod /tmp
sed -i -e 's/foo/bar/g' /tmp/file_to_mod
cat /tmp/file_to_mod >/etc_file_to_mod

Hope that helps!