Send the same command to all SSH session

[Mihamina Rakotomandimby (R12y)]

Hi,

I manage several servers over SSH and I would like to (for example) send 
"apt-get update", then "apt-get upgrade" to all the sessions at a time.

That feature seems to be available in the KDE Konsole.

What about the xfterm4?

I dont want to install KDE stuff just for that.

Thanks.

-- 
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