Run multiple commands over SSH as sudo

Question

I am trying to run commands as sudo over SSH, without success:

ssh -t -p 2222 name@server /usr/bin/sudo << EOF chmod u-r /xy chmod +x /xy /xy sleep 5 ps aux | grep xy sleep 5 exit EOF 

This is not working. Without -t and /usr/bin/sudo:

sudo: no tty present and no askpass program specified 

Single line command is working:

ssh -p 13001 -t name@server 'sudo /xy' 

Answer 1

This should work:

ssh -t -p 2222 name@server "/usr/bin/sudo bash -c 'chmod u-r /xy; chmod +x /xy; ...'"