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 nmap usage 

::basic scan | # nmap [ip_addr]

::all ports {udp/tcp} | # nmap -p- [ip_addr]

::output to a file | # nmap -oN /file/to/path

::aggresive | # nmap -T4 [ip_addr]

::all scripts | # nmap -sC [ip_addr]

::verbose | # nmap -sV [ip_addr]

sample:
# nmap -sC -sV -p- -oN /home/scan.txt 1.1.1.1