Perforce Server connection error in Mac OS X

Perforce Server connection error in Mac OS X

Good Day everyone!
I am trying to configure perforce server in OS X(10.8.4) . I tried to
follow instructions from here. In fact i am not sure if i am doing it
right ! Please check the commands below that i entered in Terminal.
Last login: Sun Sep 1 02:13:19 on ttys000
MDs-MacBook-Pro:~ Emon$ export PATH=~/perforce:$PATH export P4PORT=1666
MDs-MacBook-Pro:~ Emon$ cd ~/perforce chmod a+x p4d p4d -d
MDs-MacBook-Pro:perforce Emon$ chmod a+x p4
MDs-MacBook-Pro:perforce Emon$ mkdir ~/myws cd ~/myws p4 client myws
mkdir: /Users/Emon/myws: File exists
mkdir: p4: File exists
MDs-MacBook-Pro:perforce Emon$
After that i tried to to connect from p4v, but the following occurs !
In connection setup assistance i tried (as instructed in the link)
Host : localhost
Port : 1666
And the connection continues to refuse showing this...
Connect to server failed;check $P4PORT.
TCP Connection to localhost:1666 failed.
Connect: 127.0.0.1:1666 : Connection refused.
Please someone guide me in this regard. Thank you in advance. :)