I dunno about standard, but it's been done a bunch.
* As sibling notes, there's ansible (or chef/puppet/salt/...)
* The traditional solution was https://github.com/duncs/clusterssh which opens an xterm to each target plus a window that you type into to mirror input to all of them
* I do the same-ish in tmux with
bind-key a set-window-option synchronize-panes
and I expect screen and such have equivalent features
* Likewise, there are terminal emulators that let you do splits and then select a menu option to mirror input to all of them
* As sibling notes, there's ansible (or chef/puppet/salt/...)
* The traditional solution was https://github.com/duncs/clusterssh which opens an xterm to each target plus a window that you type into to mirror input to all of them
* I do the same-ish in tmux with
and I expect screen and such have equivalent features* Likewise, there are terminal emulators that let you do splits and then select a menu option to mirror input to all of them