Basics

#scan ports 1-65535

nmap 10.0.0.1 -p-

#scan subnet all ports

nmap 10.0.0.0/24 -p-

#scan IP's 1 to 100

nmap 10.0.0.1-10.0.0.100

#scan Services, TCP Syn, Aggressive port 145

nmap -sV -sS -A p145,139 10.0.0.1