This is an error I recently received when trying to use TextWrangler to edit files on a remote host through SSH/SFTP.  It would be interesting if anyone could shed the light on the problem.

What I know is I edited the .bashrc and .bash_profile files in order to set a couple of enviroment variables and I decided to put in a echo to remind myself each time that it was done (so I remember to edit the files again when I am done with my current class at school that is requiring this change).

It was after adding that echo ‘Variables set’ to the .bashrc that TextWrangler starting giving the error: An unexpected I/O error occurred (MacOS Error code: -36)

After taking the echo line out of the .bashrc file it seemed to be fine.  So it looks like TextWrangler or using these sorts of source editing programs is not compatible with certain things happening when you login to a server through SSH.