Execute Bash script stored in a file over SSH

Question

Say I have the following Bash script stored in the file foo.sh:

#!/bin/bash echo foo 

Without having to scp the file, how could I execute the script stored in foo.sh on a remote machine?

I have tried the following (with a few variations) to no success:

$ ssh root@remote eval `cat foo.sh` 

eval `cat foo.sh`seems to expand to eval #!/bin/bash echo foo here

Answer 1

ssh root@MachineB 'bash -s' < local_script.sh 

I got it from that thread: How to use SSH to run a shell script on a remote machine?