Jssh

Jssh is a batch ssh tool, which OP would like.

Add this line to your application's Gemfile:

gem 'jssh'

And then execute:

$ bundle

Or install it yourself as:

$ gem install jssh

Simple Usage:

$ jssh -f hosts -u jason -p jason  'hostname'
====================172.16.39.139====================
localcentos.vm
====================192.168.42.136====================
localcentos.vm
Finished!

The hosts is a hosts file which lists every host per line like:

172.16.39.139

192.168.42.136

If you have configured the trusted relationship with each host, you can simply use:

$ jssh -f hosts -u jason 'hostname' 

Go further, if you place a file ~/.jsshrc,and the content is:

keyfile: /home/USER/.ssh/id_rsa
user: jason

Then you can get more easier:

$ jssh -f hosts  'hostname' 

And, if you place multiple commands in a script such as /path/to/script, you can use like:

$ jssh -f hosts -c /path/to/script 

At last, I think this is very charming for OP, we can use a batch tool with pause. Just use the -b or --break option:

$ jssh -f hosts  'hostname' -b

After the operation of the first host is done, the jssh can auto login to the first host, which lets us can check our operation is ok.

====================172.16.39.139====================
localcentos.vm
Now the operations on the first host is completed, we're going to it for a check.
Press ENTER to automatic to login 172.16.39.139 ...

Last login: Sat Mar 29 00:57:07 2014 from 172.16.39.1
jason@localcentos:~

After you finish check, exit back to jssh, we can choose to parallel or serial to finish the left operations, or just Ctrl+C to exit.

Continue to finish all the left operations by parallel(p) or serial(s), [p/s] p
====================192.168.42.136====================
localcentos.vm
Finished!

At last, type jssh --help for more help.

1. Fork it ( http://github.com//jssh/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request