a script to ssh multiple servers over multiple tmux panes

ssh-multi-ec2

#!/bin/bash
# ssh-multi-ec2
# based on ssh-multi by D.Kovalov
# https://gist.github.com/dmytro/3984680
# in turn 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
# customized for ec2


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

    local hosts=( $HOSTS )
    local ident=""
    local user=""

    if [ $IDENT = "none" ]; then
        ident=""
    else
        ident=" -i $IDENT"
    fi

    if [ $USER = "none" ]; then
        user=""
    else
        user=" ${USER}@"
    fi

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

HOSTTMP="${@:3}"
HOSTS=${HOSTS:=$HOSTTMP}
IDENT=$1
USER=$2

starttmux