我需要制作一个从用户获取以下内容的脚本:
1)进程名称(在Linux上)。
2)此进程写入的日志文件名。
它需要终止该进程并确认该进程已关闭。将日志文件名更改为带有时间和日期的新文件名。然后再次运行该过程,确认它已启动,以便继续写入日志文件。
先谢谢您的帮助。
您可以使用以下pgrep命令检索给定名称的进程ID(PID):
pgrep
import subprocess import signal import os from datetime import datetime as dt process_name = sys.argv[1] log_file_name = sys.argv[2] proc = subprocess.Popen(["pgrep", process_name], stdout=subprocess.PIPE) # Kill process. for pid in proc.stdout: os.kill(int(pid), signal.SIGTERM) # Check if the process that we killed is alive. try: os.kill(int(pid), 0) raise Exception("""wasn't able to kill the process HINT:use signal.SIGKILL or signal.SIGABORT""") except OSError as ex: continue # Save old logging file and create a new one. os.system("cp {0} '{0}-dup-{1}'".format(log_file_name, dt.now())) # Empty the logging file. with open(log_file_name, "w") as f: pass # Run the process again. os.sytsem("<command to run the process>") # you can use os.exec* if you want to replace this process with the new one which i think is much better in this case. # the os.system() or os.exec* call will failed if something go wrong like this you can check if the process is runninh again.
希望这可以帮助