如何解决Linux系统中出现的进程重复运行问题

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import os

pid_file = "/var/run/my_process.pid"

if os.path.isfile(pid_file):
  print("Process is already running")
else:
  with open(pid_file, "w") as f:
    f.write(str(os.getpid()))
  print("Process started")

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import socket
import sys

pid_socket = "/tmp/my_process.sock"
server = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)

try:
  server.bind(pid_socket)
except socket.error:
  print("Process is already running")
  sys.exit()

print("Process started")

#!/bin/bash

if ps -ef | grep -v grep | grep my_process > /dev/null; then
  echo "Process is already running"
else
  my_process &
  echo "Process started"
fi

import logging
import os

pid_log = "/var/log/my_process.log"

logging.basicConfig(filename=pid_log, level=logging.DEBUG)

if "Process started" in open(pid_log).read():
  print("Process is already running")
else:
  os.system("echo 'Process started' >> " + pid_log)
  print("Process started")