How to kill a process on a port on ubuntu
UbuntuPortKillUbuntu Problem Overview
I am trying to kill a process in the command line for a specific port in ubuntu.
If I run this command I get the port:
sudo lsof -t -i:9001
so...now I want to run:
sudo kill 'sudo lsof -t -i:9001'
I get this error message:
ERROR: garbage process ID "lsof -t -i:9001".
Usage:
kill pid ... Send SIGTERM to every process listed.
kill signal pid ... Send a signal to every process listed.
kill -s signal pid ... Send a signal to every process listed.
kill -l List all signal names.
kill -L List all signal names in a nice table.
kill -l signal Convert between signal numbers and names.
I tried sudo kill 'lsof -t -i:9001' as well
Ubuntu Solutions
Solution 1 - Ubuntu
You want to use backtick, not regular tick:
sudo kill -9 `sudo lsof -t -i:9001`
If that doesn't work, you could also use $() for command interpolation:
sudo kill -9 $(sudo lsof -t -i:9001)
Solution 2 - Ubuntu
Solution 3 - Ubuntu
FOR UBUNTU 1- Find what application/process is using the pro, type:
sudo netstat -lpn |grep :8080
and press Enter.
You will get an output similar to this one
tcp6 0 0 :::8080 :::* LISTEN 6782/java
2- I have got the process Id, which is 6782, now this is the process that is using port 8080.
3- Kill the process, type: kill -p 6782
kill -9 6782
Solution 4 - Ubuntu
The best way to kill a port in the Ubuntu terminal is with the fuser command; e.g.:
fuser -k 9001/tcp
This sends SIGKILL by default.
Solution 5 - Ubuntu
There are some process which does not shown using normal netstat command, so you have to check it using sudo.
Do sudo netstat -lpn |grep :8080. Process running by system does not show PID, to get PID of this process you will have to run it using sudo
And then killl the process using port 8080. You may have to use sudo here as well. So to kill this process use sudo kill -9 PID
Solution 6 - Ubuntu
To kill a process running on Port number 9001
sudo kill -9 $(sudo lsof -t -i:9001)
lsof - list of files(Also used for to list related processes)
-t - show only process ID
-i - show only internet connections related process
:9001 - show only processes in this port number
kill - command to kill the process
-9 - forcefully
sudo - command to ask admin privilege(user id and password).
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Solution 7 - Ubuntu
Use https://github.com/abdennour/miscs.sh/blob/master/killport">killport</a> command :
sh killport 9001
To Download shell ,you can use wget :
wget https://cdn.rawgit.com/abdennour/miscs.sh/e0aac343/killport
Solution 8 - Ubuntu
To kill the process based on port first we have to find out the relevant pid for given port and kill using that pid,
In my case i wanted to get the pid(process id) of 3000 port:
netstat -ltnp | grep -w '3000'
then find pid which is listening to tcp
tcp6 0 0 :::3000 :::* LISTEN 29972/node
you will get pid 29972
To kill this pid use below command
kill -9 29972
pseudo code for kill process based on port
netstat -ltnp | grep -w 'PORT'
and
kill -9 PID
Solution 9 - Ubuntu
Use this:
sudo kill -9 $(lsof -t -i:9001)
Solution 10 - Ubuntu
sudo kill -9 $(sudo lsof -t -i:9001) worked for me or
you can use
sudo kill -9 `sudo lsof -t -i:9001`
replace 9001 with port number you want.
Solution 11 - Ubuntu
Just enter the following command in the terminal
kill -9 $(lsof -t -i:3000)
Solution 12 - Ubuntu
Kill PORT:
sudo is important to show process id.
$ sudo netstat -antlp | grep 45136
tcp 0 0 0.0.0.0:45136 0.0.0.0:* LISTEN **-**
$ kill -9 45136
Solution 13 - Ubuntu
Use the command
netstat -plten |grep java
used grep java as tomcat uses java as their processes.
It will show the list of processes with port number and process id
tcp6 0 0 :::8080 :::* LISTEN
1000 30070621 16085/java
the number before /java is a process id. Now use kill command to kill the process
kill -9 16085
-9 implies the process will be killed forcefully.
Solution 14 - Ubuntu
If I was you,I would use
fuser -k -n tcp PORT
kill -9 PID
Solution 15 - Ubuntu
Try this:
lsof -i :port
or
sudo kill $(sudo lsof -t -i:8000)
or
kill -9 <pid>
or
sh killport 8000
Solution 16 - Ubuntu
It gives me an error OSError: [Errno 98] Address already in use. using the following method solved my error in Ubuntu.(VERSION="18.04.4 LTS (Bionic Beaver)")
$ sudo netstat -lpn |grep :5000
tcp 0 0 0.0.0.0:5000 0.0.0.0:* LISTEN 25959/uwsgi
$ fuser -k -n tcp 5000
5000/tcp: 25959
Hope it will help someone!
Solution 17 - Ubuntu
sudo kill `sudo lsof -t -i:9001`
you don't have to add the -9signal option
Solution 18 - Ubuntu
xargs can be a very useful command.
You can pipe commands like this
lsof -t -i :9001 | xargs sudo kill
What it does:
it takes the output from the first command, in this case the process running on port, and will pass it to sudo kill.
Solution 19 - Ubuntu
-
get PID of process running on port 3000:
lsof -i tcp:3000 -
kill th process
kill -9 process_id
Example:
lsof -i tcp:3000
(PID in output = 5805)
kill -9 5805
> use sudo if required
Solution 20 - Ubuntu
you can use following command in terminal
fuser -k 3000/tcp
Solution 21 - Ubuntu
Its two steps process:
-
Know process id on port no. 8080 (can be any)
-
Kill process of that id 8689 (can be different)
fuser -n tcp 8080 #o/p 8080/tcp 8689 kill -9 8689
Solution 22 - Ubuntu
you can work this using node
npm install freethenport -g
then
node freethenport 9001
Solution 23 - Ubuntu
Displays active TCP connections, ports on which the computer is listening.
netstat -tupln
It will list you all the connection along pid. Find and copy the pid and run the following command. Make sure you replace the
kill -9 <copied pid>
> -9 use to forcefully kill the connection.
Solution 24 - Ubuntu
When using newer versions of Ubuntu you won't have netcat anymore, instead you use ss
ss -lptpn | grep 9001
sudo kill <replace-with-process-id>