linux - How to automate telnet session using Expect? -

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i'm trying write expect script automate telnet. have far.

#!/usr/bin/expect # test expect script telnet.  spawn telnet 10.62.136.252 expect "foobox login:" send "foo1\r" expect "password:" send "foo2\r" send "echo hello world\r" # end of expect script.

basically, want telnet following ip address , echo hello world. however, seems script fails after attempting telnet...i'm not sure if it's able accept login , password input, not echoing hello world. instead, output:

cheungj@sfgpws30:~/justin> ./hpuxrama  spawn telnet 10.62.136.252 trying 10.62.136.252... connected 10.62.136.252. escape character '^]'. welcome opensuse 11.1 - kernel 2.6.27.7-9-pae (7).  foobox login: foo1 password: foo2~/justin>

you're sending echo command without first expecting prompt. try:

# after sending password expect -re "> ?$" send "echo hello world\r" expect eof

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