sudo cat << EOF> File doesn't work, sudo su does

Question

I tried the following on the command prompt in bash:

sudo cat << EOF > /etc/yum.repos.d/some-name.repo
#Content
#....
#...
EOF

It

Answer 1

Another option is tee.

cat << EOF | sudo tee -a /etc/yum.repos.d/some-name.repo
...
EOF