git clone https://github.com/golang/crypto.git，复制到 golang.org/x/ 目录下。
常常用来建立ssh连接发送一条命令，但有时需要模拟ssh客户端功能，即直接连接上远程主机一直操作：（http://www.zhihu.com/question/30368538/answer/47835043）
package main import (
"golang.org/x/crypto/ssh"
"log"
"os"
) func main() {
ce := func(err error, msg string) {
if err != nil {
log.Fatalf("%s error: %v", msg, err)
}
} client, err := ssh.Dial("tcp", "172.16.116.200:22", &ssh.ClientConfig{
User: "root",
Auth: []ssh.AuthMethod{ssh.Password("^Two^Ten=1024$")},
})
ce(err, "dial") session, err := client.NewSession()
ce(err, "new session")
defer session.Close() session.Stdout = os.Stdout
session.Stderr = os.Stderr
session.Stdin = os.Stdin modes := ssh.TerminalModes{
ssh.ECHO: ,
ssh.TTY_OP_ISPEED: ,
ssh.TTY_OP_OSPEED: ,
}
err = session.RequestPty("xterm", , , modes)
ce(err, "request pty") err = session.Shell()
ce(err, "start shell") err = session.Wait()
ce(err, "return")
}
实际使用中有缺陷，通过 tab 补全时并不能正确显示。还是直接使用shell编写吧，简单实用：
#!/usr/bin/expect
set timeout
spawn ssh root@122.116.16.200
expect "password:"
send "123456\r"
interact