Spark开发第一个程序

simon@simon-Lenovo-G400:~/.ssh$ touch authorized_keys
simon@simon-Lenovo-G400:~/.ssh$ cat id_rsa.pub > authorized_keys
simon@simon-Lenovo-G400:~/.ssh$ chmod 600 authorized_keys
simon@simon-Lenovo-G400:~/.ssh$ ssh localhost
Welcome to Ubuntu 16.04.4 LTS (GNU/Linux 4.13.0-45-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

96 个可升级软件包。
0 个安全更新。

simon@simon-Lenovo-G400:~$

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