Execute local script on remote Linux host

Question

I have a local script that will not run without root privs on the remote host. I have edited and allowed the sudoers file to run the script from the home dir (/home/username

Answer 1

Copy the script with scp, then run it.

scp script.sh user@hostname:
ssh user@hostname sudo ./script.sh > results.txt

To do it in one line:

ssh user@hostname 'cat > script.sh; chmod 755 script.sh; sudo ./script.sh' < script.sh > results.txt

However, this won't work if you need to enter a password into sudo. All of ssh's stdin will be put in the script. There might be a way to do this using Expect, but I don't have much expertise there.