$ cd /usr/ports/lang
$ mkdir -p perl5.8/files
$ cd perl5.8
$ ftp ftp://ftp.freebsd.org/pub/FreeBSD/branches/4.0-stable/ports/lang/perl5.8/
# at this point I enter the FTP shell
> prompt
> mget *
> lcd files
> cd files
> mget *
> exit
$ cd ..