bash: make tui with tmux

tmux_sample.sh

#!/bin/bash

###
### This is tmux using sample.
### 2022.12.21 cybertramp([email protected])
###

## PRECONFIG
COMMAND_TMUX=tmux
TMUX_NAME=runner

PANE0__INIT_CMD="df -h"
PANE1__INIT_CMD="sshpass -p a [email protected]"
PANE2__INIT_CMD="ls -al"
PANE3__INIT_CMD="ps -ef"
PANE4__INIT_CMD="whoami"


## Check tmux command is availavle.
if ! command -v $COMMAND_TMUX &> /dev/null
then
    echo "<the_command> could not be found"
    exit
fi

## tmux running check
if tmux info &> /dev/null; then 
  echo running
else
  echo not running
fi

tmux new-session -s ${TMUX_NAME} -n test -d

tmux split-window -h -p 90
tmux select-pane -t 1
tmux split-window -v -p 50
tmux select-pane -t 1
tmux split-window -v -p 50
tmux select-pane -t 3
tmux split-window -v -p 50
tmux select-pane -t 0

## Set options
tmux set -g pane-border-status top

## Set Title
tmux select-pane -t 1 -T "SESSION 1"
tmux select-pane -t 2 -T "SESSION 2"
tmux select-pane -t 3 -T "SESSION 3"
tmux select-pane -t 4 -T "SESSION 4"

tmux set -g mouse on

## Send command to pane
tmux select-pane -t 0
tmux send-keys "$PANE0__INIT_CMD" Enter
tmux select-pane -t 1 
tmux send-keys "$PANE1__INIT_CMD" Enter
tmux select-pane -t 2 
tmux send-keys "$PANE2__INIT_CMD" Enter
tmux select-pane -t 3 
tmux send-keys "$PANE3__INIT_CMD" Enter
tmux select-pane -t 4 
tmux send-keys "$PANE4__INIT_CMD" Enter

## Attach setup tmux
tmux attach -t ${TMUX_NAME}