怎样通过Python命令管理Linux进程

要通过Python命令管理Linux进程，您可以使用subprocess模块

1. 启动一个新进程：

import subprocess

command = "echo 'Hello, World!'"
process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
output, error = process.communicate()

if process.returncode == 0:
    print("Process executed successfully:", output.decode('utf-8'))
else:
    print("Error occurred while executing the process:", error.decode('utf-8'))

2. 获取当前进程列表：

import os
import psutil

def get_process_list():
    process_list = []
    for process in psutil.process_iter(['pid', 'name']):
        process_list.append({'pid': process.info['pid'], 'name': process.info['name']})
    return process_list

print(get_process_list())

3. 结束一个进程：

import os
import psutil

def kill_process(pid):
    try:
        process = psutil.Process(pid)
        process.terminate()
        print(f"Process {pid} terminated successfully.")
    except psutil.NoSuchProcess:
        print(f"Process {pid} not found.")
    except psutil.AccessDenied:
        print(f"Permission denied while trying to terminate process {pid}.")

pid = 12345
kill_process(pid)

请注意，这些示例可能需要根据您的需求进行调整。在使用subprocess模块时，请确保正确处理权限和安全性问题。