ssh自动登录服务器并执行一条命令取得返回结果后退出

linenoise

# 执行时候至少要给出一个IP和命令
# 如果要在多台服务器上执行命令
# 则最后一个参数是要执行的命令
# 其它都是服务器IP
#
#!/usr/bin/expect
set user ｛YOUR_USER_NAME}
set password {YOUPASSWOD}

if {$argc < 2} {
  puts "Usage: script IP IP2 ... COMMAND"
  exit 1
}

set hosts [lrange $argv 0 end-1]
set command [lindex $argv end]
foreach host $hosts {
  spawn ssh $user@$host
  expect \
    "yes*\\?"     {send "yes\r"; exp_continue} \
    "password:"  {send "$password\r"}

  expect "*\\\$"
  send "$command\r"
  expect "*\\\$"
  send "exit\r"
  puts ""
}