expect_out(buffer) is not capturing all output from a Cisco IOS command

eentonig · 01-30-2008, 06:06 AM

Probably I'm overseeing something obvious. But I can't get it to work.

I'm trying to create an Expect script that will capture the output from certain Cisco IOS commands and log them in a text file. Everything works fine, apart from the expect_out() output.

I've been searching for two days now, and thought it might be time to pop the question.

I've already tried changing the match_max value, but this doesn't seem to work.

Here's a snippet from the script

Code:

...
set IfIndex      "show ip interfaces brief\r"
set termlength   "terminal length 0\r"
send \r
send $termlength 
expect {*#}     {}
send $IfIndex
expect {*#}     {}
set outcome $expect_out(buffer)
puts $outcome
...

And this is all I get as outcome, while I would expect several lines off text.

Quote:

tntunr1-vpn#

Can somebody point me to where I make my mistake.

eentonig · 01-30-2008, 07:29 AM

Never mind. It appears I made a stupid typo in the cisco command I'm sending.

Should have read "show ip interface brief" and not "interfaces"