[SOLVED] Expect script trouble

[Road_Runner]

Hi All,

This is my first post here although I have been browsing these forums for a while and found a lot of useful information

I am having trouble getting expect to work on my 8.04 server. I have tried to create script to telnet into my router but expect just does not seem to work. Here is my script:

#!/usr/bin/expect

set timeout 20 #If it all goes pear shaped the script will timeout after 20 seconds.

spawn telnet 192.168.1.1 #This spawns the telnet program
match_max 100000
expect -exact "Trying 192.168.1.1...\r
Connected to 192.168.1.1.\r
Escape character is '^]'.\r
VOYAGER2110 \r
Software Version: 3.03c\r
Login name: "
send -- "admin\r" #The script sends the user variable
expect -exact "admin\r
Password: "
send -- "**********\r" #The script sends the password variable
interact

When I try to run the script I get the following errors:

./expect_telnet.sh: line 6: spawn: command not found
./expect_telnet.sh: line 7: match_max: command not found
expect: invalid option -- e
usage: expect [-div] [-c cmds] [[-f] cmdfile] [args]
./expect_telnet.sh: line 15: send: command not found
expect: invalid option -- e
usage: expect [-div] [-c cmds] [[-f] cmdfile] [args]
./expect_telnet.sh: line 19: send: command not found
./expect_telnet.sh: line 20: interact: command not found

So it looks like expect is not working at all.

Any ideas on what the problem might be would be greatly appreciated.

Cheers

R_R

[quelx]

Try getting rid of unnecessary match info. Also I think \n is the carriage return not \r. Remove the spaces after the prompts. eg.

#!/usr/bin/expect -f
spawn telnet 192.168.1.1 #This spawns the telnet program
match_max 100000
expect -exact "Login name:"
send -- "admin\n" #The script sends the user variable
expect -exact "Password:"
send -- "**********\n" #The script sends the password variable
interact

[Road_Runner]

Thanks for the reply quelx.

I tried changing my code according to your post but I am still getting the same errors:

./expect_telnet.sh
./expect_telnet.sh: line 6: spawn: command not found
./expect_telnet.sh: line 7: match_max: command not found
expect: invalid option -- e
usage: expect [-div] [-c cmds] [[-f] cmdfile] [args]
./expect_telnet.sh: line 15: send: command not found
expect: invalid option -- e
usage: expect [-div] [-c cmds] [[-f] cmdfile] [args]
./expect_telnet.sh: line 19: send: command not found
./expect_telnet.sh: line 20: interact: command not found

It just seems as though expect is not work at all for some reason?

[quelx]

did you change the first line?

#!/usr/bin/expect

to

#!/usr/bin/expect -f

Expect reads cmdfile for a list of commands to execute. Expect may
also be invoked implicitly on systems which support the #! notation by
marking the script executable, and making the first line in your
script:

#!/usr/bin/expect -f

[Road_Runner]

oops I missed the -f

Now I am getting the following error:
spawn telnet 192.168.1.1 #This spawns the telnet program
Usage: telnet [-4] [-6] [-8] [-E] [-L] [-a] [-d] [-e char] [-l user]
[-n tracefile] [ -b addr ] [-r] [host-name [port]]
send: spawn id exp6 not open
while executing
"send -- "admin\n" #The script sends the user variable"
(file "./expect_telnet" line 8)

At least expect looks to be working now.

[quelx]

Remove the comments, #blah blah blah. expect is sending them to telnet and telnet doesn't know what to do with them.

[Road_Runner]

Many thanks quelx. It is working now