批量改变密码

#!/usr/bin/expect

set allhosts [open hosts.txt r]
foreach all [read $allhosts] {
    puts "$all"
    set passwd "123456"
    set newpasswd "12345678"
    spawn /usr/bin/ssh root@$all

    expect {
    "yes/no" { send "yes\r"; exp_continue}
    "Password: " { send "$passwd\r" }
    }

    expect "#"
    send "export LANG=\"en_US\"\r"

    expect "#"
    send "passwd\r"

    expect "password:"
    send "$newpasswd\r"

    expect "password:"
    send "$newpasswd\r"
}
expect eof
close $allhosts

exit