Expect Telnet script sending password twice

[SuaSwe]

Hi all,

I'm trying to massage an Expect script into a working state however can't get past the hurdle that it keeps sending my password twice - once to log in to the Cisco devices (which works fine) and then again on the Cisco devices' command line, causing the script to interrupt.

Script below:


#!/opt/csw/bin/expect -f
# Usage: ./cisco_config.exp <input_file>

if 0==$argc {
send_user "Usage: $0 <devices>\n"
send_user "\n<devices> is the list of Cisco devices requiring configuration\n"
exit 1
}

set timeout 10

# Open file and split into an array
set load_devices [open "$argv" r]
set device_list [split [read $load_devices] "\n"]
close $load_devices

send_tty "Enter your username: "
expect_user -re "(.*)\n"
set username $expect_out(1,string)
stty -echo
send_tty "Enter your password: "
expect_user -re "(.*)\n"
set password $expect_out(1,string)
stty echo

# Loop through array and perform commands
send_tty "\n"
foreach device $device_list {
if {$device != ""} {
send_tty "Connecting to: $device...\n"
log_user 1

spawn /usr/bin/telnet $device

expect {
eof {
send_tty "\n"
send_tty "Connection to host failed: $expect_out(buffer)"
continue
} -re sername {
send "$username\r"
}
}
expect {
-re assword {
send "$password\r"
exp_continue
} failed {
send_tty "\n"
send_tty "Invalid username or password\n"
exit
} timeout {
send_tty "Connection to $device timed out\n"
continue
}
}
expect {
-re "#" {
send "show ver | i up\r"
}
}
expect {
-re "#" {
send "exit\r"
}
}
expect eof
wait
}
}

Result of running this, pretending my password is "hello123":



[me@server]$ ./cisco_login.exp devices
Enter your username: user
Enter your password:
Connecting to: router1...
spawn /usr/bin/telnet router1
Trying 10.1.1.5...
Connected to router1

Username: user
Password:

router#hello123
Translating "hello123"
% Unknown command or computer name, or unable to find computer address
router#


I have scoured the script and can't see any reason why the password is sent a second time. If anyone could nudge me in the right direction that would be most appreciated!

[SuaSwe]

Any ideas, guys?

[SuaSwe]

Anyone?

[GreenFire]

Pretty old post but I'll reply anyway.

The "-re" is used for regular expression parsing. You don't really need it while expecting the "password" prompt string.
Hence, replace the "-re assword" with a simple "assword".