A little script for run a world clock in terminal linux (tmux)

world_clock.sh

#!/bin/bash

#TimeZones
#TZ='America/Mexico_City' tty-clock -sct -f "%a, %d %b %Y %T %z"
#TZ='America/Bogota' tty-clock -sct -f "%a, %d %b %Y %T %z"
#TZ='America/Lima' tty-clock -sct -f "%a, %d %b %Y %T %z"   
#TZ='America/New_York' tty-clock -C 3 -sct -f  "%a, %d %b %Y %T %z"
#TZ='America/Argentina/Jujuy' tty-clock -sctx -f "%a, %d %b %Y %T %z"
# reference https://en.wikipedia.org/wiki/List_of_tz_database_time_zones

if ! command -v tty-clock &> /dev/null
then
    echo "tty-clock could not be found"
    #install tty-clock
    sudo apt -y install tty-clock
fi

if ! command -v tmux &> /dev/null
then
    echo "tmux could not be found"
    #install tty-clock
    sudo apt -y install tmux
fi


tmux new-session \; \
  send-keys 'TZ='America/New_York' tty-clock -C 3 -sct -f  "%a, %d %b %Y %T %z %Z"' C-m \; \
  split-window -h -p 70 \; \
  split-window -v -p 70 \; \
  split-window -v -p 50 \; \
  select-pane -t 2 \; \
  send-keys 'TZ='America/Argentina/Jujuy' tty-clock -sctx -f "%a, %d %b %Y %T %z %Z"' C-m \; \
  select-pane -t 3 \; \
  send-keys 'TZ='America/Mexico_City' tty-clock -sct -f "%a, %d %b %Y %T %z %Z"' C-m \; \
  select-pane -t 4 \; \
  send-keys 'TZ='America/Bogota' tty-clock -sct -f "%a, %d %b %Y %T %z %Z"' C-m \;