I am getting the following error:
after looking at this solution: https://levelup.gitconnected.com/how-to-kill-server-when-seeing-eaddrinuse-address-already-in-use-16c4c4d7fe5d (kill the process manually) and typing: lsof -i tcp:8080
I get:
which one would be the process to kill?
Try the following
lsof -t -i tcp:8080 | xargs kill
You can do it using the following ways
sudo kill $(lsof -t -i:8000)
OR
sudo fuser -k -n tcp 8000
OR
fuser -k 8000/tcp
Related
I want to know which port is my Jonas, on which a Java project has been deployed, is attached to in a Linux server. I have the pid of the Jonas and tried netstat -lnp but I found no port attached to that PID.
Any idea of how to do this.
Open a terminal application i.e. shell prompt.
Run any one of the following command:
sudo lsof -i -P -n | grep LISTEN
sudo netstat -tulpn | grep LISTEN
sudo nmap -sTU -O IP-address-Here
lsof command
The syntax is:
$ sudo lsof -i -P -n
$ sudo lsof -i -P -n | grep LISTEN
$ doas lsof -i -P -n | grep LISTEN ### [OpenBSD] ###
There are many ways to do, I prefer this
sudo netstat -pan |grep pid
Also, you can use
sudo lsof -Pan -p pid -i
pid should be actual "pid" number that you have
I have a PID and i am trying to find the network connections that are attached to that PID.
i have placed the pid into a variable $PID.
So far I have tried using netstat to do it. I have tried the following
netstat -p | grep $PID
netstat | grep $PID
but these do not seem to grep anything or find what im looking for. What would be the best way to find these?
strace will do the job:
strace -p $PID -f -e trace=network -s 10000
-s 1000 increases the maximum string size to print, which is 32 by default.
Check out this question on unix.stackexchange.com for alternatives.
You can also use netstat. Just replace -p with -nap.
netstat -nap | grep {CMD-of-PID}
its from cmd of pid actually.
I am looping through folders with Java applications and getting the config file for each.
app1/config.yml
app2/config.yml
etc.
I then pull the port from this config file by using:
port= cat app1/config.yml | grep 90 | cut -d: -f2
I want to use the port to kill the application, I did find this code that does half of what I want it to do:
kill $(sudo lsof -t -i:4990)
I want to use the variable stored in port to execute the kill command, but I can't get it to work, what is the correct way to use the command, I have tried multiple ways:
kill $(sudo lsof -t -i:$port)
kill $(sudo lsof -t -i:port)
kill $(sudo lsof -t -i:"$port")
kill $(sudo lsof -t -i:'$port')
But none of these work, I keep getting errors.
Any help would be appreciated
You're not setting port correctly, you left out the $(...) around the command.
port=$(cat app1/config.yml | grep 90 | cut -d: -f2)
kill $(sudo lsof -t -i:$port)
I am using below code to kill a process which is using a port number
port = sudo lsof -n -i4TCP:3030 | grep LISTEN | awk '{print $2;}'
if [ ! -z "$port" -a "$port" != " " ]; then
sudo kill "$port"
fi
But it is saying port: command not found. What is causing the issue and how can I fix it.
As it stands,
port = sudo lsof -n -i4TCP:3030 | grep LISTEN | awk '{print $2;}'
attempts to run a command port with parameters = sudo lsof -n -i4TCP:3030 and pipe its output through grep LISTEN and then awk '{print $2;}'.
Use
port=$(sudo lsof -n -i4TCP:3030 | grep LISTEN | awk '{print $2;}')
There's no reason to roll this yourself: fuser on Linux will do it for you in a single command, and much more efficiently:
sudo fuser -n tcp -k 3030
With just one line!
sudo kill `sudo lsof -t -i:3030`
This question already has answers here:
How to kill a process running on particular port in Linux?
(34 answers)
Closed 4 years ago.
I want to define a bash alias named kill3000 to automate the following task:
$ lsof -i:3000
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
ruby 13402 zero 4u IPv4 2847851 0t0 TCP *:3000 (LISTEN)
$ kill -9 13402
alias kill3000="fuser -k -n tcp 3000"
Try this:
kill -9 $(lsof -i:3000 -t)
The -t flag is what you want: it displays PID, and nothing else.
Update
In case the process is not found and you don't want to see error message:
kill -9 $(lsof -i:3000 -t) 2> /dev/null
Assuming you are running bash.
Update
Basile's suggestion is excellent: we should first try to terminate the process normally will kill -TERM, if failed, then kill -KILL (AKA kill -9):
pid=$(lsof -i:3000 -t); kill -TERM $pid || kill -KILL $pid
You might want to make this a bash function.
Another option using using the original lsof command:
lsof -n -i:3000 | grep LISTEN | awk '{ print $2 }' | uniq | xargs kill -9
If you want to use this in a shell script, you could add the -r flag to xargs to handle the case where no process is listening:
... | xargs -r kill -9
fuser -k 3000/tcp should also work
How about
alias kill3000="lsof -i:3000 | grep LISTEN | awk '{print $2}' | xargs kill -9"
fuser -n tcp 3000
Will yield the output of
3000/tcp: <$pid>
So you could do:
fuser -n tcp 3000 | awk '{ print $2 }' | xargs -r kill