Start multiple synchronized SSH connections with Tmux

ssh-multi.sh

#!/bin/bash
# ssh-multi
# D.Kovalov
# Based on http://linuxpixies.blogspot.jp/2011/06/tmux-copy-mode-and-how-to-control.html

# a script to ssh multiple servers over multiple tmux panes

HOSTS=

read_host() {
    if [ -z "$HOSTS" ]; then
       echo -n "Please provide of list of hosts separated by spaces [ENTER]: "
       read HOSTS
    fi
}

 

start_tmux() {
	local hosts=( $HOSTS )

   	read_host
	tmux new-session -d -n 0 
    tmux new-window "ssh ${hosts[0]}"
    unset hosts[0];
	tmux set -g pane-border-status top

    for i in "${hosts[@]}"; do
        tmux split-window -h  "ssh $i"
        tmux select-layout tiled > /dev/null
    done
    tmux select-pane -t 0
    tmux set-window-option synchronize-panes on > /dev/null

	# attach session or create one
	tmux attach 
}

HOSTS=${HOSTS:=$*}

start_tmux