Find processes by command in python

Question

In my Python script, i want to check if otherscript.py is currently being run on the (Linux) system. The psutil library looked like a good solution:

import psutil
proc_iter = psutil.process_iter(attrs=["name"])
other_script_running = any("otherscript.py" in p.info["name"] for p in proc_iter)

The problem is that p.info["name"] only gives the name of the executable of a process, not the full command. So if python otherscript.py is executed on the system, p.info["name"] will just be python for that process, and my script can't detect whether or not otherscript.py is the script being run.

Is there a simple way to make this check using psutil or some other library? I realize i could run the ps command as a subprocess and look for the otherscript.py in the output, but i'd prefer a more elegant solution if one exists.

Chun-Yen Wang · Accepted Answer · 2017-10-27 17:49:53Z

7

I wonder if this works

import psutil
proc_iter = psutil.process_iter(attrs=["pid", "name", "cmdline"])
other_script_running = any("otherscript.py" in p.info["cmdline"] for p in proc_iter)

answered Oct 27, 2017 at 17:49

Chun-Yen Wang

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Giampaolo Rodolà · Accepted Answer · 2017-11-10 01:43:36Z

2

http://psutil.readthedocs.io/en/latest/#find-process-by-name Take a look at the second example which inspects name(), cmdline() and exe().

For reference:

import os
import psutil

def find_procs_by_name(name):
    "Return a list of processes matching 'name'."
    ls = []
    for p in psutil.process_iter(attrs=["name", "exe", "cmdline"]):
        if name == p.info['name'] or \
                p.info['exe'] and os.path.basename(p.info['exe']) == name or \
                p.info['cmdline'] and p.info['cmdline'][0] == name:
            ls.append(p)
    return ls

answered Nov 10, 2017 at 1:43

Giampaolo Rodolà

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Jay Lee · Accepted Answer · 2019-06-05 09:55:38Z

0

this code is checking the process ongoing. it doesn't matter Linux or Window

import psutil

proc_iter = psutil.process_iter()
for i in proc_iter:
    print(i)

answered Jun 5, 2019 at 9:55

Jay Lee

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