Python获取OS执行结果示例

此处，以获取在OS上执行数据库Hive或Mysql命令"show tables“结果为例；实际上，获取数据库的select结果及常规的Linux命令结果的道理都是一样的。

/Users/nisj/PycharmProjects/BiDataProc/love/selectQuery_inHiveMysql.py

# -*- coding=utf-8 -*-
import os
import re

def selectQuery():
    selectResult_data = os.popen("""/usr/bin/mysql -hMysqlHost -P50514 -uMysqlUser -pMysqlPass --default-character-set=utf8 -N -e "set names utf8; \
    use jellyfish_user; \
    show tables; \
    " """).readlines();

    sqd_list = []
    for sq_list in selectResult_data:
        sq = re.split('\t', sq_list.replace('\n', ''))
        sqd_list.append(sq)

    i = 0
    for sqd in sqd_list:
        i = i + 1
        print sqd[0], i

def selectQueryHive():
    selectResult_data = os.popen("""/usr/lib/hive-current/bin/hive -e "
    use default; \
    show tables; \
    " """).readlines();

    for tabName in selectResult_data:
        if "xxx" in tabName:
            print tabName.strip()

# batch test
selectQuery()
selectQueryHive()