Sometimes I need to synchronize a file or directory tree
between two machines, but can't use rsync, and only have
sftp. I wish there was a tool like rsync that would work
with sftp only.
sshfs uses sftp underneath, and you can run regular rsync on top of it.
(I've come to love sshfs lately for ad-hoc temporary remote mounting from anything to anything.)
Joey, that is ingenious. I'll have to try that when
I need this the next time.