How-to-execute sudo command in remote host via SSH

Question:

I have a interactive shell script, that in one place needs to SSH to another machine (Ubuntu based) and execute something As root (the user should enter his password, and the remote command should run like noted in the script):

# ...ssh remote-machine ‘sudo ls‘# ...

However, I always get this error message back:

sudo: no tty present and no askpass program specified

OK, that ' s quite clear. But what can I circumvent this? Something like this should happen:

$ ssh remote-machine ‘sudo ls /‘[sudo] password for user1:/bin/etc/var

Answer:

The wondrous has ssh a cure for everything. The point was to add the -t flag to force SSH to allocate a pseudo-tty:

ssh -t remote-server ‘sudo ls‘

How-to-execute sudo command in remote host via SSH