python_exec_shell

#python执行shell命令

#!/usr/bin/env python import shlex import datetime import time import subprocess

def execute_command(cmdstring,cwd=None,timeout=None,shell=False): if shell: cmdstring_list = cmdstring else: cmdstring_list = shlex.split(cmdstring) if timeout: end_time = datetime.datetime.now() + datetime.timedelta(seconds=timeout)

sub = subprocess.Popen(cmdstring_list, cwd=cwd, stdin=subprocess.PIPE, shell=shell, bufsize=4096)
while sub.poll() is None:
    time.sleep(0.1)
    if timeout:
        if end_time <= datetime.datetime.now():
            raise Exception("Timeout:%s" % cmdstring)

return str(sub.returncode)