lsof -P -i -n lsof -i tcp:443 lsof -Pan -i tcp -i udp lsof -i -P | grep -i "listen" lsof -Pnl -i lsof -Pni4 | grep LISTEN | column -t lsof -c "process" lsof -u username -a +D /etc lsof / | \ awk '{ if($7 > 1048576) print $7/1048576 "MB" " " $9 " " $1 }' | \ sort -n -u | tail | column -t lsof -p <PID> | grep cwd