My "expect" script is not working... Won't "send" commands...

edomingox · 03-31-2009, 02:45 PM

I've been working on this script for hours trying to figure out why it's not working. The following code is a portion of the whole script. This code is actually within a "for" loop. here's the code:

Code:

                set timeout 3
		spawn -noecho ssh ${account}@$ipAddress 
		send_user "Configuring $equipment...\n"
		log_user 0
		# LOOKING FOR THE PASSWORD PROMPT
		expect {
			"yes/no" {
				send "yes\r"
				exp_continue
			}
			"*?assword:*$" {
				send "$pass\r"
			}
			timeout {
				set error "$equipment $ipAddress is unreachable\n"
				set passLog "$passLog$error"
				continue
			}
		}
	
		# LOOKING FOR THE PROMPT
		expect {
			"#" {
				send "ls\r"	
				log_user 1
				send_user "Working...\n"
				send "exit\r"
				send_user "Working2...\n"
				
			}
			"Permission denied" {
				set error "Wrong Password for $equipment $ipAddress using user \"$account\".\n"
				set passLog "$passLog$error"
				continue
			}
		}

The script was made to ensure a clean login is made and report any unreachable ip addresses or bad password inputs.

My greatest concern lies within the expected "#" portion. The lines with "Working..." and "Working2..." both display. So it seems to be bypassing my "send ls/r" and the "send exit/r". I don't know why it's doing that. Any help would be great.

kenoshi · 03-31-2009, 03:18 PM

make sure you insert:

Code:

expect eof

After you send "exit" to the remote shell. Either that or go interactive.

Hope this helps.

edomingox · 04-01-2009, 09:15 AM

my biggest concern is when I'm trying to do the "send ls\r" and it doesn't work. I don't really want to exit the script in there because it's in a loop. I only added the exit to see if that it actually does exit, but it doesn't. I think I may have some syntax or something wrong.

edit: I tried expect eof after the send ls and that worked. thanks for the help. i'll have to read up on why it's done this way as i wasn't really expecting it to run like that.

jlinkels · 04-01-2009, 10:29 PM

Did you put set exp_internal 1 at the beginning of your code?

jlinkels

edomingox · 04-02-2009, 04:25 PM

I havent tried doing that yet. But I figured out that the script was getting ahead of itself. So the expect eof helped that out. I'll test that out too. Just to see what it shows me.