I am trying to use autossh, like so:
autossh -f -i id_rsa -D 8080 email@example.com
However, on both an PPC Tiger eMac and a Mountain Lion MacBook Pro, I just get presented with the argument and environment variable list.
Both machines have autossh 1.4c installed. I am focused on getting it working on the Tiger machine; I only tried it on my Mountain Lion MBP to see if the issue was Tiger-specific.