python可以从fi读取服务器名称吗

Question

python是否可以从一个文件中读取服务器名/IP_地址，而不是逐个给出服务器名，我确实进行了搜索，但没有找到任何关于它的信息。 我有下面的脚本，但这只采取单一的IP地址或服务器名称一次。感谢您的任何意见。。在

这是针对Linux和Python2.6版的

#!/usr/bin/env python
import sys
sys.stderr = open('/dev/null')       # Silence silly warnings from paramiko
import paramiko as pm
sys.stderr = sys.__stderr__
import os

class AllowAllKeys(pm.MissingHostKeyPolicy):
    def missing_host_key(self, client, hostname, key):
        return

HOST = '192.1.10.1'
USER = 'karn'
PASSWORD = 'mypass'

client = pm.SSHClient()
client.load_system_host_keys()
client.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
client.set_missing_host_key_policy(AllowAllKeys())
client.connect(HOST, username=USER, password=PASSWORD)

channel = client.invoke_shell()
stdin = channel.makefile('wb')
stdout = channel.makefile('rb')

stdin.write('''
hostname
uname -a
uptime
who
exit
''')
print stdout.read()

stdout.close()
stdin.close()
client.close()

注意：我希望python读取包含服务器名称或ip地址的文件。。示例如下。。在

^{pr2}$

Below code is working now..appreciate your help guys

#!/usr/bin/python
import fileinput
import sys
import paramiko as pm
import os

sys.stderr = open('/dev/null')       # Silence silly warnings from paramiko
sys.stderr = sys.__stderr__


class AllowAllKeys(pm.MissingHostKeyPolicy):
    def missing_host_key(self, client, hostname, key):
        return

with open('/home/karn/PYTHN/host.txt', 'r') as f:
    for host in f:
        HOSTN = host.rstrip()
        USER = 'myuser'
        PASSWORD = 'mypass'

        client = pm.SSHClient()
        client.load_system_host_keys()
        client.load_host_keys(os.path.expanduser('~/.ssh/known_hosts'))
        client.set_missing_host_key_policy(AllowAllKeys())
        client.connect( HOSTN, username=USER, password=PASSWORD )

        channel = client.invoke_shell()
        stdin = channel.makefile('wb')
        stdout = channel.makefile('rb')

        stdin.write('''
        hostname
        lsb_release -a
        exit
        ''')
        print stdout.read()

        stdout.close()
        stdin.close()
        client.close()

Answer 1

您可以使用一个包含3列的csv文件，其中一列用于HOST、USER和{}。这是官方的examples。在您的代码中，您将循环遍历行并提取每行中的3个字段，如示例所示。在