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Dave, You're right that the universal binaries will work on G4, G5, or Intel Mac platforms as well as new platforms compatible with these. As a result, the binaries are larger than binaries specifically built for a particular platform. If you don't have a bin folder, you could make one with mkdir ~/bin [makes bin subdirectory of your home directory (/Users/Dave or whatever)] Then you can put commands you want to use in there, such as ncdump: cp ncdump ~/bin If you have an environment variable named PATH, you can set it to include your bin directry for another place to search for commands: echo $PATH export PATH=~/bin:$PATH or setenv PATH ~/bin:$PATH depending on whether your command interpreter is one of {sh, bash, ksh, zsh} or one of {csh, tcsh}. Sorry it's so complicated, that's why command-line interfaces seem clunky compared to GUI's. --Russ Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: RLD-473689 Department: Support netCDF Priority: Normal Status: Closed