这篇文章主要介绍了通过python连接Linux命令行代码实例,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下
代码如下
#!/usr/bin/python
# -*- coding: utf-8 -*-
'''https://www.ibm.com/developerworks/cn/linux/l-cn-pexpect2/index.html'''
import pexpect
import types
username = "root"
ip = "192.168.***.***"
password = "****"
pex = pexpect.spawn('ssh %s@%s' % (username, ip))
def _check(pattern, timeout=120):
i = pex.expect(pattern, timeout=timeout)
return i
def sendcr(cmd):
if pex == None:
return 0
n = pex.send("%s\r" % cmd)
return n
def getexec(cmd):
child = pexpect.spawn(cmd)
child.expect(pexpect.EOF)
return child.before
if __name__ == '__main__':
checklist1 = [["(?i)Connection refused", False],
["(?i)Host key verification failed.", False],
["(?i)VENUSTECH AUDIT SYSTEM MA1000", True],
# ["(?i)#\[/]",True], # hpux
["(?i).+>", True], # windows
[".+[>$#]\s*$", True], # debian
["(?i)Last login", True],
["(?i)access denied", False],
["(?i)NT_STATUS_LOGON_FAILURE", False],
["(?i)are you sure you want to continue connecting", "yes"],
["(?i)authentication fail(?!ure)", False],
["(?i)connection closed by remote host", False],
["(?i)login failed", False],
["(?i)login incorrect", False],
["(?i)need to be root", False],
["(?i)no route to host", False],
["(?i)not found", False],
["(?i)Bad secrets", False],
["(?i)incorrect password", False],
["(?i)permission denied", False],
# ["(?i)terminal type",terminal_type],
["This private key will be ignored.", False],
["(?i)no route to host", False],
["(?i)press 'Enter' key to proceed", "\r"],
["(?i)Y/N", 'Y'],
[pexpect.EOF, False],
[pexpect.TIMEOUT, False],
["(?i)Enter passphrase for key .*:", password],
["(?i)assword", password],
["(?i)passwd", password],
["(?i)sername", username],
["(?i)(?<!sful )login", username],
["(?i)----------------------------------------------------------------", True]]
checklist2 = [i[0] for i in checklist1]
while True:
i = _check(checklist2)
print i, checklist1[i], checklist1[i][1]
if (type(checklist1[i][1]) is types.BooleanType):
if type(checklist1[i][1]):
break
else:
sendcr(checklist1[i][1])
cmd = "ls -l /etc/rsyslog.conf"
result = getexec(cmd)
print "result", result
打印结果：
26 ['(?i)assword', '***'] *** 5 ['(?i)Last login', True] True result -rw-r--r--. 1 root root 3167 Mar 13 11:24 /etc/rsyslog.conf
