Installing mlocate on mac OS 10.7

I'm a beginner in using Linux. I'm trying to use the command "locate". Once I use this command, I get an error that says the locate database should be created. I used the command below to create that database, but I still get the same error: sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.locate.plist I tried so many things including installing locate, but the commands work in Ubuntu seem not to work in mac os. Does anybody know what the issue is? Thanks in advance,