使用expect工具 用ssh命令自动登录远程主机

#!/usr/expect/bin/expect
#
# 登录远程机器
# 参数：
#   ip: 远程主机IP
#   user: 远程主机用户
#   password: 远程主机用户密码
#

# check parameter numbers
if {$argc < 3} {
puts " Error : Parameter is error."
puts " Usage : ./ssh.exp host_ip host_user password"
puts "Example: ./ssh.exp 192.168.1.233 uxdb 123456"
exit 1
}

set host_ip [lindex $argv 0]
set host_user [lindex $argv 1]
set password [lindex $argv 2]

spawn ssh $host_user@$host_ip

expect {
"*(yes/no)?" {
send "yes\r"
exp_continue
}
"*password:" {
send "$password\r"
}
}
expect {
"Host key verification failed." {
puts "verify failed!"
exit 1
}
"Permission denied*" {
puts "password is error!"
exit 1
}
"Last login*" {
puts "OK"
}
}
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