[other] How to change directory/file permissions

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http://ubuntuforums.org – I'm trying to change the permissions for a folder and all its contents. I've used "pwd" to confirm I'm at the correct directory, issued the command, but keep getting a "no such file" response from Terminal. If you see what I'm doing wrong in the following, please let me know (I thought I was placing the slash in the wrong area, but that doesn't seem to be it): [From Terminal:] "Admins-MacBook:EarthstockPortlandBest2012 joel$ sudo chmod -R 755 /EarthstockPortlandBest2012 Password: chmod: /EarthstockPortlandBest2012: No such file or directory Admins-MacBook:EarthstockP (Hardware)