Question

Here i am making a connection b/w two machines using telnet and in the remote host i am creating a file named “file.txt” and storing the result of the “ls” command execution in the file.txt. now i need to send the file to the local host. i dont know how to do it. anybody who knows it kindly help me out here.

#!/usr/local/bin/expect 
spawn telnet <machine ip> 
expect "login:" 
send "<username>\n" 
expect "Password:" 
send "<password>\n" 
expect "bash"
send " ls > file.txt\r "
expect "bash"
send " cat file.txt \r "
expect "bash"
send " command for copying file to the localhost computer\r"
expect "bash"
send "exit\r"

Answer 1

You’re strongly recommended to use ssh and scp for this task.

#!/usr/local/bin/expect

### Factor these out
set user <username>
set pass <password>
set host <machineIP>

### Get the file list into a file remotely
spawn ssh $user@$host sh -c {ls -1 >file.txt}
expect {
    "Password:" {
        send "$pass\r"
        exp_continue
    }
    eof {
        close
    }
}
### Copy the file to the local machine
spawn scp $user@${host}:file.txt .
expect {
    "Password:" {
        send "$pass\r"
        exp_continue
    }
    eof {
        close
    }
}