How to obtain a list of installed Mac ports
If you want to obtain a list of Mac ports you installed (requested) and that are active use the following command:
port installed requested |
grep -F '(active)'
requested is a pseudo-portname limiting the list to installed ports
that were explicitly asked for. The grep command limits this list
further to the ports that are active only. It checks for the exact
string (active) using -F. By adding -c to grep one gets a
count of the requested and active ports.