问个expect的小问题

jamesbang2003

#!/opt/sfw/bin/expect

set ip [lindex $argv 0]
set user [lindex $argv 1]
set passwd [lindex $argv 2]
set cmd [lindex $argv 3]

spawn telnet $ip
expect "login:"
sleep 1
send "$user\r"
expect "assword:"
sleep 2
send "$passwd\r"
expect eof
send "bash\r"
expect eof
send "mkdir ttttt\r"
expect eof