bash commands I forget sometimes

bashing.md

For explanations of all these commands with their options, see https://www.explainshell.com

Three ways to find processes using port 8080. (May need sudo.)

ss -lptn 'sport = :8080'
netstat -nlp | grep :8080
lsof -n -i :8080 | grep LISTEN

top

Tree view of processes, where hierarchal relationships are illustrated:

ps axjf # f option doesn't work on my mac

netstat command to find open ports:

netstat --listen

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check syntax of nginx configuration files

nginx -t -c /etc/nginx/nginx.conf

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socket statistics

ss