Python-调用系统指令小记

 1 import subprocess
 2 def exec_command(cmd, log_path, **kwargs):
 3     with open(log_path, ‘w‘) as f:
 4         p = subprocess.Popen(cmd,
 5                              shell=True,
 6                              stdout=f.fileno(),
 7                              stderr=f.fileno(),
 8                              executable=‘/bin/bash‘,
 9                              **kwargs)
10     p.communicate() #立即阻塞父进程，直到子进程结束
11     if p.returncode != 0:
12         print(‘cmd: %s execute failed‘, cmd)
13     else:
14         print(‘execute command: %s finished‘, cmd)
15     return p.returncode