How to kill a process on a port on ubuntu

Question

I am trying to kill a proccess 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

Answer 1

Use killport command :

sh killport 9001 

To Download shell ,you can use wget :

wget https://cdn.rawgit.com/abdennour/miscs.sh/e0aac343/killport

Answer 2

Try this:

lsof -i :port

or 

sudo kill $(sudo lsof -t -i:8000)

or

kill -9 <pid>

or 

sh killport 8000

Answer 3

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).

for more you can visit my blog

Answer 4

You want to use backtick not regular tick:

sudo kill `sudo lsof -t -i:9001`

If that doesn't work you could also use $() for command interpolation:

sudo kill $(sudo lsof -t -i:9001)

Answer 5

Its two steps process:

1. Know process id on port no. 8080 (can be any)

2. Kill process of that id 8689 (can be different)

   fuser -n tcp 8080
   
   #o/p 8080/tcp    8689
   
   kill -9 8689
   

Answer 6

sudo kill `sudo lsof -t -i:9001`

you don't have to add the -9signal option