dsh dancer’s shell, or distributed shell.
https://www.netfort.gr.jp/~dancer/software/dsh.html
https://www.tecmint.com/using-dsh-distributed-shell-to-run-linux-commands-across-multiple-machines/
$ sudo apt install dsh
$ sudo vim /etc/dsh/dsh.conf
replace remoteshell =rsh to remoteshell =ssh
$ mkdir -p ~/.dsh/group
$ vim ~/.dsh/group/machine-group
machine1.bla.org
machine2.bla.org
machine3.bla.org
$ dsh -M -g machine-group -c "lsb_release -a"