vlan port membership

i have several vlans on our Cisco 4500. i have traditionally managed these via the gui, but am trying to learn the cli. how do i change a port’s (or group of) membership from one vlan to another?

reading the posts it seems that i can use either vlan command or switchport command however i am do not understand the syntax or what the appropriate commands are – blade/port, vlan, add/include etc.

TIA