SHELL

linux how to see ports in use

# Any of the following
sudo lsof -i -P -n | grep LISTEN
sudo netstat -tulpn | grep LISTEN
sudo lsof -i:22 # see a specific port such as 22
sudo nmap -sTU -O IP-address-Here

list of running ports linux

# it list the all running ports with process id.
$ netstat -ltnp

linux see used ports

netstat -tulpn

linux how to see ports in use

sudo netstat -tulpn | grep LISTEN

sudo lsof -i:22 # see a specific port such as 22

list open ports linux

sudo netstat -tulpn 

linux show which serial ports are in use

lsof /dev/

used ports in linux

# To check the listening ports and applications on Linux
# Use any of the following command on terminal

sudo lsof -i -P -n | grep LISTEN 

sudo netstat -tulpn | grep LISTEN

sudo lsof -i:80 # see a specific port such as 80

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linux check the specific ports in use

sudo lsof -i:22 # see a specific port such as 22

linux command open ports list

open ports LNX