>>file location
This works on both unix and windows box's the following command is for a windows machine and the one that follows is for a unix box.
C:\Program Files\Nmap> nmap -p80 -P0 -sS 69.182.0.0/16 >>c:\folder\nmap.txt
#nmap -p80 -P0 -sS 69.182.0.0/16 >>/home/user/nmap.txt
Just a refresher of what everything means
-p80 port 80
-P0 run scan even if ping dosn't succeed
-sS Syn scan
IP The ip address of whom you are scanning or starting point in range
/16 Subnet 255.255.0.0
>> Where to ouput the file