Ports management

Update Ports Collection
That is to say update /usr/ports

# vi /etc/portsnap.conf
Change SERVERNAME=portsnap.FreeBSD.org
to:
SERVERNAME=portsnap.hshh.org

First time:
# portsnap fetch
# portsnap extract
or
# portsnap fetch extract

After first time:
# portsnap fetch
# portsnap update
or
# portsnap fetch update

Update Ports
# portsdb -Uu
# portversion -l "<"
# portupgrade -arRF
# pkgdb -Ffu        #Repair,don't stop when run this

#pkg_which file        #look up the package's version

Clean up the temporary work directories and distfiles
# portsclean -C
# portsclean -D
# portsclean -DD