Linux Shell 判断指定端口是否已经被占用

netstat [-acCeFghilMnNoprstuvVwx][-A<网络类型>][--ip]

vi test.sh

if netstat -an | grep "$1" | grep -i listen >/dev/null ; then
    echo "$1 is running."
else
    echo "$1 is not running."
fi

chmod +x test.sh

./test.sh 8080