远程登录后安装软件

[罗非鱼]

我想通过ssh远程登录计算机后，在那台机器上安装一个程序。
下面的命令，为何不对？
ssh pt@192.168.1.101 sudo apt-get install mplayer
pt@192.168.1.101's password:
sudo: no tty present and no askpass program specified

[罗非鱼]

ssh pt@192.168.1.101 sudo apt-get install mplayer
pt@192.168.1.101's password:
sudo: no tty present and no askpass program specified
how to revise my command
ssh pt@192.168.1.101 sudo apt-get install mplayer?

[罗非鱼]

为何分成两步就可以
ssh pt@192.168.1.101
pt@192.168.1.101's password:
Linux pt 2.6.35-28-generic #50-Ubuntu SMP Fri Mar 18 19:00:26 UTC 2011 i686 GNU/Linux
Ubuntu 10.10
Welcome to Ubuntu!
* Documentation: https://help.ubuntu.com/
New release 'natty' available.
Run 'do-release-upgrade' to upgrade to it.
Last login: Tue May 10 11:50:10 2011 from pengtao-x51l.local
pt@pt:~$ sudo apt-get install mplayer
[sudo] password for pt:
Reading package lists... Done
Building dependency tree

可以写成一句话吗？

[eexpress]

2个环境。

[lilydjwg]

不开终端就没有 tty，没有 tty 你又不给 sudo -s 参数 sudo 就不知道从哪里读密码，就这样。

[MaskRay]

用 sudo -S