prompt user
    match /[Uu]sername: $/

prompt pass
    match /password(?: for \w+)?: $/

prompt generic
    match /(?:\[)?\w+@.+(?:\])?\$ $/

prompt privileged
    match /^(?:\[)?root@.+(?:\])?# $/

macro begin_privileged
    send sudo su -
    match pass or privileged

macro end_privileged
    send exit
    match generic

macro disconnect
    send logout