我如何可以自动通过SSH远程运行命令？ [英] How can I automate running commands remotely over SSH?
问题描述
我已经搜索了一下周围类似的问题，但除此之外，运行一个命令或者用物品，如一些命令：
I've searched around a bit for similar questions, but other than running one command or perhaps a few command with items such as:
ssh user@host -t sudo su -
但是，如果我基本上需要运行一个脚本（假设）15台服务器的一次。这是可行的在bash？在一个完美的世界，我需要避免安装应用程序，如果在所有可以拉动这一关。为了便于讨论，让我们只说我需要跨10个主机做到以下几点：
However, what if I essentially need to run a script on (let's say) 15 servers at once. Is this doable in bash? In a perfect world I need to avoid installing applications if at all possible to pull this off. For argument's sake, let's just say that I need to do the following across 10 hosts:
- 部署一个新的Tomcat容器
- 部署在容器中的应用程序，并将其配置
- 配置Apache虚拟主机
- 刷新阿帕奇
我有一个脚本，做了这一切，但是它依赖于我登录到所有服务器，从回购拉着一个脚本下来，然后运行它。如果这是不可行的在bash，你有什么建议的替代品？我需要一个更大的锤子，如Perl（Python的可能是preferred因为我可以保证Python是在所有箱子在RHEL环境，感谢百胜/ up2date的）？如果任何人都可以指向我任何有用的信息，这将会是很大的AP preciated，尤其是如果它在bash可行的。我会满足于Perl或Python的，但我只是不知道这些，以及（就这一工作）。谢谢！
I have a script that does all of that, but it relies on me logging into all the servers, pulling a script down from a repo, and then running it. If this isn't doable in bash, what alternatives do you suggest? Do I need a bigger hammer, such as Perl (Python might be preferred since I can guarantee Python is on all boxes in a RHEL environment thanks to yum/up2date)? If anyone can point to me to any useful information it'd be greatly appreciated, especially if it's doable in bash. I'll settle for Perl or Python, but I just don't know those as well (working on that). Thanks!
推荐答案
通常情况下，我只用期待的原始的Tcl版本。你只需要有在本地计算机上。如果我使用Perl程序里面，我做这与的Net :: SSH ::期待 。其他语言也有类似的期望的工具。
Often, I'll just use the original Tcl version of Expect. You only need to have that on the local machine. If I'm inside a program using Perl, I do this with Net::SSH::Expect. Other languages have similar "expect" tools.
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