-Pn - skip host discovery-sn - Ping scan - disable port scan-sU - UDP scan-p - specify a port or port range-F - fast mode - scan fewer ports than the default--top-ports - scan <number> most popular ports-sV - probe open ports to determine service/version info-O - OS detectionTime unit is seconds by default. Append ms, s, m, or h to number of time units to change the unit used.
--host-timeout - Give up after trying for this longBasic host discovery
nmap 172.16.0.0/24