Pexpect无法正确获取输出

Question

I'm using Pexpect to interact with a remote firewall. Everything in the interaction is okay but, when I try to get the output with child.before, I do not get what I want. This is my code:

child = pexpect.spawn('ssh admin@X.X.X.X')
child.sendline(password)
child.expect('>')
child.sendline('set cli pager off')
child.expect('>')
child.send('show system info')
child.expect('>')
child.before

The output I get in child.before sentence is next:

' set cli \\r\\x1b[Kadmin@name(active)'

In the firewall side, this is the interaction I'm receiving (It is copied directly from child.interact()):

admin@ctsmefw1(active)> set cli pager off
admin@ctsmefw1(active)> show system info

hostname: name
ip-address: ip
# ...There are more lines but these are omitted here...

admin@name(active)> 

So the interaction with the firewall is correct. Why I can'nt get the output? What am I doing wrong?

Thanks for your help, regards

Mike

Answer 1

您应该将child.send('show system info')更改为child.sendline('show system info') 。