Regarding Mac port and git installation

I am trying to install git and "openjdk6" using mac port, however when I type:

sudo port install git-core in the terminal

it returns: sudo: port: command not found

I think it might be a path problem, but I am new to mac so I don't how to fix it, can someone help ?

Any advice would be appreciated

if I type echo $PATH MacPort
it returns
/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin MacPort

# MacPorts Installer addition on 2013-02-08_at_18:45:01: adding an appropriate PATH variable for use with MacPorts.
export PATH=/opt/local/bin:/opt/local/sbin:$PATH
# Finished adapting your PATH environment variable for use with MacPorts.


##
# Your previous /Users/f24u23/.profile file was backed up as /Users/f24u23/.profile.macports-saved_2013-02-08_at_19:27:58
##

# MacPorts Installer addition on 2013-02-08_at_19:27:58: adding an appropriate PATH variable for use with MacPorts.
export PATH=/opt/local/bin:/opt/local/sbin:$PATH
# Finished adapting your PATH environment variable for use with MacPorts.