Python常用脚本

特定执行前缀

#!/usr/bin/env python
# coding=utf-8
# -*- coding=utf-8

获取命令行结果

import os

command = 'pwd'          #可以直接在命令行中执行的命令
r = os.popen(command)    #执行该命令
info = r.readlines()     #读取命令行的输出到一个list
for line in info:        #按行遍历
    line = line.strip('\r\n')
    print(line)

批量关闭指定的Yarn资源

import os

res_dic = {}
command = 'yarn application -list'
r = os.popen(command)
info = r.readlines()
for line in info:
    line = line.strip('\r\n')
    line_item = line.split("\t")
    if len(line_item) >= 2:
        target_str_index = line_item[1].find('Hive on Spark')
        if target_str_index != -1:
            print("yarn application -kill " + line_item[0])
            os.popen("yarn application -kill " + line_item[0])