A script to setup a tmux session with ssh connections to multiple hosts

tmux.sh

#!/bin/sh
SESSION="sessionName"

# Creating the tmux session:
tmux new-session -d -s $SESSION
# Disable renaming of windows:
tmux set-option -t $SESSION -g allow-rename off

# Function to open a window and connect to a target:
# Parameters are window name, target ip
open (){
  tmux new-window -t $SESSION -n $1
  tmux send-keys -t $SESSION "ssh $2" C-m
}

# Opening windows and connecting to targets:
open "host1" "192.168.0.1"
open "host2" "192.168.0.2"

# Closing first, empty window:
tmux select-window -t $SESSION:0
tmux send-keys "exit" C-m