【转】使用expect和ssh远程执行命令的脚本

晚上找了个脚本，可以用来远程执行命令，这个脚本的用处就是让你可以密码和命令一次性作为参数带入，单纯用ssh只能手工输入密码。有了这个脚本再结合“erl -detached”的方式就可以实现远程开服了，感谢原作者 :)

2011年5月6日：增加了ssh私钥验证的支持。

#!/usr/bin/expect -f
exp_version -exit 5.0
if {$argc!=2} {
    send_user "usage: remote-exec command passwordn"
    send_user "Eg. remote-exec "ssh user@host ls\; echo done" passwordn"
    send_user "or: remote-exec "scp /local-file user@host:/remote-file" passwordn"
    send_user "or: remote-exec "scp user@host:/remote-file local-file" passwordn"
    send_user "or: remote-exec "rsync --rsh=ssh /local-file user@host:/remote-file" passwordn"
    send_user "Caution: command should be quoted.n"
    exit
}
set cmd [lindex $argv 0]
set password [lindex $argv 1]
eval spawn $cmd
set timeout 30
while {1} {
    expect -re "Are you sure you want to continue connecting (yes/no)?" {
            # First connect, no public key in ~/.ssh/known_hosts
            send "yesr"
        } -re "Enter passphrase for key " {
            # Already has public key in ~/.ssh/known_hosts
            send "$passwordr"
        } -re "password:" {
            # Already has public key in ~/.ssh/known_hosts
            send "$passwordr"
        } -re "Permission denied, please try again." {
            # Password not correct
            exit
        } -re "kB/s|MB/s" {
            # User equivalence already established, no password is necessary
            set timeout -1
        } -re "file list ..." {
            # rsync started
            set timeout -1
        } -re "bind: Address already in use" {
            # For local or remote port forwarding
            set timeout -1
        } -re "Is a directory|No such file or directory" {
            exit
        } -re "Connection refused" {
            exit
        } timeout {
            exit
        } eof {
            exit
        }
}