如何接收大输出的paramiko .recv函数？

Question

我需要从paramiko的.recv函数中得到全部输出。我试图增加字节数，但在我个人看来，这不是正确的方法。脚本的主要目的是在同一会话中自动化命令列表。这里我的主要问题是无法从shell接收全部输出。

环境：

• python v2.7.14
• paramiko v2.4.1

我的脚本代码：()

#!/usr/bin/env python
import sys,os,time
import paramiko

user = raw_input("Enter your username please:  ")
upassword = getpass.getpass()
ip = "172.x.x.x"
username = "ikxxxx"
password = "xxxgdxx"
ofile = open("ipsadd.csv", "r")


def sshConnection(ip):
   ssh = paramiko.SSHClient()
   ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
   ssh.connect(ip, username=user, password=upassword)
   connection = ssh.invoke_shell()


for line in ofile:
    hostname = line.split(",")[0].strip()
    print "\n\n" 
    print "Configuration running on: " + hostname
    host = line.split(",")[1].strip()
    print "IP: " + host
    print "*" * 40

    connection.send("ssh " + username + "@" + host + "\n")
    time.sleep(1)
    connection.send("\n")
    time.sleep(2)
    connection.send("yes" + "\n")
    time.sleep(2)
    connection.send(password + "\n")
    time.sleep(1)
    connection.send("screen-length 0 temporary" + "\n")
    time.sleep(2)
    connection.send("clear alarm  al no-trap" + "\n")
    time.sleep(2)
    connection.send("Y\n")
    connection.send("display device\n")
    connection.send("display temperature\n")
    connection.send("display device pic-status\n")
    connection.send("display power\n")
    connection.send("display health\n")
    connection.send("display cpu-usage\n")
    connection.send("display memory-usage\n")
    connection.send("display alarm all\n")
    connection.send("display switchover state\n")
    connection.send("display startup\n")
    connection.send("display version\n")
    connection.send("display interface brief\n")
    connection.send("display isis peer\n")
    connection.send("display isis peer verbose\n")
    connection.send("display bgp vpnv4 all peer\n")
    connection.send("display bgp vpn4 all peer verbose\n")
    connection.send("display bgp peer\n")
    connection.send("display current-configuration\n")
    time.sleep(1)
    connection.send("q\n")
    output = connection.recv(999999)
    print output
    break


  sshConnection("179.x.x.x")

Answer 1

最后，我找到了解决方案，我在代码的末尾添加了一个While循环，这样它就会继续接收输出，直到发生中断语句。

While True:
    output = connection.recv(1024)
    print output
    if "condition" in output:
        break