this website for understanding Linux commands you paste in is so good https://explainshell.com/explain?cmd=nmap+-vvv+-sS+-p+1-65535+--max-retries%3D1+-oN+TARGET.txt+IP
explainshell.com - nmap -vvv -sS -p 1-65535 --max-retries=1 -oN TARGET.txt IP

@SwiftOnSecurity I just found this site the other day and it is fantastic.