import re
import os
import paramiko
import redis
import time

tday_time=time.strftime("%Y-%m-%d", time.localtime()) # 獲取當天的日期時間
file_path = '/Users/macbook/Desktop/log.txt' # 存放Log日志的路徑

class ssh_Liunx():

'''連接服務器'''
def __init__(self,hostname,username,password): # 構造初始化數據
    self.hostname = hostname
    self.username = username
    self.password = password
    self.ssh =paramiko.SSHClient()
    self.ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())  # 用ssh連接遠程主機時，第一次連接時會提示是否繼續進行遠程連接，選擇yes
    self.ssh.connect(self.hostname,22,self.username,self.password) #連接遠程主機，SSH端口號為22

def ssh_comond(self,commonds): # 執行命令的方法
    '''執行命令'''
    stdin, stdout, stderr = self.ssh.exec_command(commonds)  # 執行命令
    result=stdout.readlines()
    for line in result:
        print(line)
    return result


def get_hostname(self): # 獲取服務器主機名
    commonds='hostname'
    get_hostname=self.ssh_comond(commonds)
    return  get_hostname


def get_disk_space(self):  # 獲取剩余磁盤空間
    commonds='df -h'
    get_diskspace=self.ssh_comond(commonds)
    return get_diskspace

def Transcode(self):# 獲取日志文件信息 輸入到當前目錄下
    count=0  # 計數
    commonds='cd /xxxx/logs;cat laravel-'+tday_time+'.log'  # linux執行命令
    get_transcode=self.ssh_comond(commonds) # 調用方法具體執行
    for line in get_transcode: # 讀取當前獲取的日志信息
        with open(file_path,'a+') as fp: # 本地生產log文件
            fp.write(line) # 將日志另到文件中
        count+=1
    #print("當前文件總計:%s行日志信息"%count)
    # print(os.path.getsize(file_path))  # 文件大小 字節
    return get_transcode

def re_error(self):  # 正則匹配日志的錯誤信息，存在問題，沒有匹配出來，待繼續處理
    matches=[]
    identifier_pattern = re.compile(r'Identifier: (.*?)$')
    with open(file_path, 'a+') as fp:
        for line in fp:
            matches+=re.findall(identifier_pattern,line)
    print("matches", matches)

def closed(self): # 關閉連接
    self.ssh.close()

if name == 'main':

hostname = '127.0.0.1'
username = 'username'
password = 'password
ssh = ssh_test(hostname, username, password)
print(ssh.Transcode()) 

不完善之處還請多多指教