How to append "&" to the end of a line in sed?

Question

linux

There is a command
sed -i -e 's#$# log1.txt &#' $outfile
It should add log1.txt & at the end of each line. The command works fine, but the &
icon is not added Please help to solve this issue

Answer 1

Need to escape &
sed -i -e 's#$# log1.txt \&#' $outfile