CVS is already comes as part of the Xcode tool but the cvs executable is not in the path. So simply copy the cvs executable from the XCode 4.3 is /Applications/Xcode.app/Contents/Developer/usr/bin folder to /usr/bin Using the following command, You would have to execute the copy command with the sudo as follows: sudo cp /Applications/Xcode.app/Contents/Developer/usr/bin/cvs /usr/bin<!>