Develop Reference

How to restart specific running python file Ubuntu

I have running python file "cepusender/main.py" (and another python files). How can I restart/kill only main.py file?

Here's a way (there are many):
ps -ef | grep 'cepusender/main.py' | grep -v grep | awk '{print $2}' | xargs kill
ps is the process snapshot command. -e prints every process on the system, and -f prints the full-format listing, which, germanely, includes the command line arguments of each process.
grep prints lines matching a pattern. We first grep for your file, which will match both the python process and the grep process. We then grep -v (invert match) for grep, paring output down to just the python process.
Output now looks like the following:
user 77864 68024 0 13:53 pts/4 00:00:00 python file.py
Next, we use awk to pull out just the second column of the output, which is the process ID or PID.
Finally we use xargs to pass the PID to kill, which asks the python process to shutdown gracefully.

kill is the command to send signals to processes.
You can use kill -9 PID to kill your python process, where 9 is the number for SIGKILL and PID is the python Process ID.

Execute a shell function from python subprocess

I'm trying to kill a specific process with a command which works well in the shell but not from python subprocess
import subprocess
subprocess.call(["kill", "$(ps | grep process | awk '{ print $1}' | head -n1)"], shell=False)
A work around would be to put this command into a shell script and run the shell script.
Is it possible from python subprocess directly ?

import subprocess
subprocess.Popen("kill $(ps | grep ncat | awk '{print $1}' | head -n1)", shell=True)
In your example, you don't create a subprocess from bash, but at the same time you use $(...) which is a bash instruction. To be more precise, you create a kill process and pass it argument $(...) which is not precomputed.
The above example creates a bash process, and then tells it to interpret kill $(...). Bash converts $(...) to a value, and then it runs kill VALUE.

how to kill python program in linux using name of the program

when i use ps -ef |grep i get the current running programs
if below shown are the currently running programs.How can i stop a program using the name of the program
user 8587 8577 30 12:06 pts/9 00:03:07 python3 program1.py
user 8588 8579 30 12:06 pts/9 00:03:08 python3 program2.py
eg. If i want to stop program1.py then how can i stop the process using the program name "program1.py"
.If any suggestions on killing the program with python will be great

By using psutil is fairly easy
import psutil
proc = [p for p in psutil.process_iter() if 'program.py' in p.cmdline()]
proc[0].kill()
To find out the process from the process name filter through the process list with psutil like in Cross-platform way to get PIDs by process name in python

Try doing this with the process name:
pkill -f "Process name"
For eg. If you want to kill the process "program1.py", type in:
pkill -f "program1.py"
Let me know if it helps!

Assuming you have pkill utility installed, you can just use:
pkill program1.py
If you don't, using more common Linux commands:
kill $(ps -ef | grep program1.py | awk '{print $2}')
If you insist on using Python for that, see How to terminate process from Python using pid?

grep the program and combine add pipe send the output in another command.
1. see program ps -ef.
2.search program grep program.
3. remove the grep that you search because is appear in the search process grep -v grep.
4.separate the process to kill with awk awk '{ print $2 }'
5. apply cmd on the previous input xarks kill -9
ps -ef | grep progam | grep -v grep | awk '{ print $2 }' | xargs kill -9
see here for more:
about pipe , awk, xargs
with python you can use os:
template = "ps -ef | grep {program} | grep -v grep | awk '{{ print $2 }}' | xargs kill -9"
import os
os.system(template.format(program="work.py"))

Get source file path of a running python script from process id

I have a process running in the background, a python one, with ps -ef I can see filename from running command : UID PID PPID ... python ./filename.py
How can I know where the file is located

pwdx < PID > gives full directory the process is running from.
So, the full script would be
ps -ef | grep 'your process' | awk '{print $2}' | xargs pwdx
Though, you can simplify this into
pgrep 'your process' | awk '{print $1}' | xargs pwdx

Combine all the kill bash command in one line

I am using the following command to kill my servers at the moment and want to combine them into one.
1- ps aux | grep 'python manage.py runserver'
sudo kill -9 $PID
2- ps aux | grep 'python -m SimpleHTTPServer'
sudo kill -9 $PID
3- ps aux | grep 'aptly api server'
sudo kill -9 $PID
Is there a way to kill all the three processes using a single command? or atleast combine them.
EDIT: I am trying the below command but it is just print out single PID number.

ps aux | egrep -i 'python manage.py runserver|aptly api serve|python -m SimpleHTTPServer' | awk '{print $2}' | xargs kill -9