http://mabufs.i2p/blog/how-install-ports-without-answering-many-questions
If you need to install With a small program from ports, it will not be difficult for us to answer a few questions after running the make install command. But what if you have a weak computer on which you decide to install, say, Apache OpenOffice. Installation can take a long time or even a day, and you will have to answer the questions that the system will ask, which is not very convenient, and in this case you will be tied to the computer.