Remote diff over ssh

Want to do a diff on a local and remote file, or on 2 remote files. Here is a small trick # Local and remote diff diff file <(ssh remote 'cat file') # Or both are on remote servers diff <(ssh remote1 'cat file') <(ssh remote2 'cat file') I use this a lot when a ansible –check run tells me there is a diff and want to know what I will be overwriting.