set environment variable SSH_ASKPASS or askpass in sudoers, resp

Question

I\'m trying to login to a ssh server and to execute something like:

ssh user@domain.com \'sudo echo \"foobar\"\'
         


        

Answer 1

Another way is to run sudo -S in order to "Write the prompt to the standard error and read the password from the standard input instead of using the terminal device" (according to man) together with cat:

cat | ssh user@domain.com 'sudo -S echo "foobar"'

Just input the password when being prompted to.

One advantage is that you can redirect the output of the remote command to a file without "[sudo] password for …" in it:

cat | ssh user@domain.com 'sudo -S tar c --one-file-system /' > backup.tar