Linux 查看端口占用情况
lsof -i:port
例子:
lsof -i:3000
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
node 3385 grayson 24u IPv4 0x3361f519169d57bf 0t0 TCP *:hbci (LISTEN)
node 3385 grayson 153u IPv4 0x3361f5190449d7bf 0t0 TCP localhost:hbci->localhost:58359 (ESTABLISHED)
Electron 3457 grayson 44u IPv4 0x3361f519060dcb3f 0t0 TCP localhost:58361->localhost:hbci (CLOSED)
Electron 3457 grayson 63u IPv4 0x3361f519060dde3f 0t0 TCP localhost:58359->localhost:hbci (ESTABLISHED)