How to terminate old session in iTerm2

Question

Maybe a stupid question with an obvious answer, but I don't know the solution. I'm new with the command line and especially Apple and iTerm2.

In iTerm2 I open a new session for my PHP project with php -S localhost:port

Now I accidentally closed this tab once and now I don't know how to terminate that session. When I want to open another project on that port (8000) it says, ofcourse, Failed to listen on 127.0.0.1:8000 (reason: Address already in use)

Can someone help me on how to terminate this session, so I can start another project on this port instead of using 8001, 8002, 8003 etc.

Thanks in advance

Answer 1

I fixed it myself, but since I can't be the only one wondering this, here is my solution:

Enter this into the terminal:

lsof -i TCP:8000

It will yield a result that might look something like this:

renaebair@siren ~/workspace/intridea/newsite (master) 
→ lsof -i TCP:3000
COMMAND  PID   USER       FD     TYPE     DEVICE     SIZE/OFF    NODE   NAME
ruby   68780   renaebair   6u    IPv4     0x10898278     0t0      TCP     *:hbci (LISTEN)

Grab the process number (a.k.a. PID) (in this case it was 68780) and then type “kill #{that_pid}”:

kill 68780 

Then try restarting your server and all should be well!

Answer 2

I think that this might work, at least in my unix machine it does.

sudo kill $(fuser -n tcp 8000 2> /dev/null)