#coding=utf-8
import os
import sys
import re
import subprocess

#return exitcode value + output message:
#    0: succ
#    1: error
def system_cmd_run(cmd_str):
    dangerous_cmd = {"rm", "mv", "poweroff", "shutdown"}
    
    for cmd in dangerous_cmd:
        pattern = "\s*%s" %(cmd)
        match_str = re.match(pattern, cmd_str)
        if not match_str is None:
            print("can't run this cmd:%s" %(cmd_str))
            sys.exit(1)
            
    try:
        exitcode, output = subprocess.getstatusoutput(cmd_str)
    except Exception as e:  
        #if exitcode != 0:
        #    output = ""
        return 1, e

    return exitcode, output