macports

From macports bug list “port list installed” does not do what you think it does. “port list installed” gets the list of names of all the installed ports, and for each one, shows you the current version, regardless of what version is installed. To see the versions that are installed, you want to use “port … Read more

I had this same problem recently, and I forgot to run the command under root. If anyone else is having the problem, be sure to run command as so: sudo port selfupdate

Use port installed to list all of your ports.