Create Tabs and Panes for tmux.

tmuxDev.sh

#!/bin/bash

SESSION_NAME="TmuxSession"
TMUX_TABS=2
TMUX_PANES=16

tmux  start-server

if ! $(tmux  has-session -t "${SESSION_NAME}"); then
    cd ~/

    env TMUX= tmux  start-server \; set-option -g base-index 1 \; new-session -d -s "${SESSION_NAME}" -n 'shell1'
    tmux  set-option -t "${SESSION_NAME}" default-path ~/

    for (( i = 2; i <= TMUX_TABS; i++ ))
    do
        tmux  new-window -t "${SESSION_NAME}":${i} -n "shell${i}"
    done


    for (( i = 1; i <= TMUX_TABS; i++ ))
    do
        tmux  send-keys -t "${SESSION_NAME}":${i} "echo 1" C-m
        for (( j = 2; j <= TMUX_PANES; j++ ))
        do
            tmux  splitw -t "${SESSION_NAME}":${i}
            tmux  send-keys -t "${SESSION_NAME}":${i} "echo ${j}" C-m
            tmux  select-layout -t "${SESSION_NAME}":${i} 'tiled'
        done
    done

    tmux  select-window -t "${SESSION_NAME}":1

fi

if [ -z $TMUX ]; then
    tmux  -u attach-session -t "${SESSION_NAME}"
else
    tmux  -u switch-client -t "${SESSION_NAME}"
fi