Startup cron + tmux script

startup.sh

#!/bin/bash
# Cron + tmux statup script
# Approach was taken from http://www.nburles.co.uk/linux/starting-a-process-in-a-tmux-session-using-cron

# Sleep for 5 seconds. If you are starting more than one tmux session 
#   "at the same time", then make sure they all sleep for different periods
#   or you can experience problems
/bin/sleep 5

# Ensure the environment is available
source $HOME/.bashrc
source $HOME/.profile

SESSION_NAME=mystartup
/usr/bin/tmux set-option  -g  default-shell /bin/bash
# Run bash without command
/usr/bin/tmux new-session -ds $SESSION_NAME                   "source $HOME/.bashrc; source $HOME/.profile; bash"
# Execute <COMMAND #1> and then run bash to save output. Without bash tmux window will close and you can't see any errors if they occured.
/usr/bin/tmux new-window  -dt $SESSION_NAME:91 -n "geth"      "source $HOME/.bashrc; source $HOME/.profile; <COMMAND #1>; bash"
/usr/bin/tmux new-window  -dt $SESSION_NAME:92 -n "video"     "source $HOME/.bashrc; source $HOME/.profile; <COMMAND #2>; bash"
/usr/bin/tmux new-window  -dt $SESSION_NAME:95 -n "analyzer"  "source $HOME/.bashrc; source $HOME/.profile; <COMMAND #3>; bash"

# Installing script:
# touch $HOME/startup.cron
# chmod +x $HOME/startup.cron
# crontab -e
# @reboot $HOME/startup.cron
# vim $HOME/startup.cron
# and insert this file content...

# Attaching 
#tmux attach-session -t mystartup

why is <COMMAND #1> before bash ?

Hi @jerlich, thanks for question.
I've added comments with explanation why bash is written after command.
If bash will be before <COMMAND #1>, then <COMMAND #1> will be executed only if you exit bash manually.