How to Run Tmux Service Scripts on Ubuntu Start Up

Yes, it is not a long memory after doing it countless times. Yesterday I stepped on it again; the startup script written on ubuntu does not execute, it is only a problem of executable permissions and user permissions, and wasted another morning;

Do some work automatically when unbuntu starts. The best practice is:

You want to execute a service

If it is an older ubuntu (version<=14.04LTS);

At this time you need to use ubuntu's upstart mechanism

To put it simply, this is a script like this:

123	start on startuptaskexec /path/to/command

Save it as a taskxxx.conf file and place it under the /etc/init directory (this will be started with root user authority when booting);

Or save as ~/.config/upstart (this will start with the current user rights at boot time)

If you are a more modern ubuntu (version>=16.04LTS)

You need to use the systemd service, which we wrote about popular science articles before:

https://happy123.me/blog/2016/08/22/how-to-write-standard-startup-script/

Just want to execute a simple command

1	sudo nano /etc/rc.local

Add the executed command, don’t forget to add exit at the end

12	/opt/tmux.shexit 0

Increase executable permissions

1	sudo chmod +x /etc/rc.local

note:

To have executable permissions, this is the easiest to step on the pit. After ubuntu is installed, /etc/rc.local does not have executable permissions.
Pay attention to the ENV variable of the executed command. If you are not sure, set SHELL ENV Variable in the command signature
If you are executing a script, pay attention to the shell (bash or sh or zsh) called by the script command, and ENV Variable
Pay attention to users who execute scripts and commands

If it is to modify an environment variable

Modify the current user:

1	nano ~/.bashrc

Effective for all users:

1	nano ~/etc/profile

Finally, the simplest and rude way to perform tasks on startup is included

Just start a tmux session in /etc/rc.local and execute the commands you want to run in it; simple and rude and effective

Here is a template:

1234567891011121314151617181920

#! /bin/bash# description "Start Tmux"# 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 availablesource ~/.bashrc# Create a new tmux session named newscrawler../usr/bin/tmux new-session -d -s bitcoin# ...and control the tmux session (initially ensure the environment# is available, then run commands)# /usr/bin/tmux send-keys -t bitcoincash:0 "source ~/.bashrc" C-mtmux new-window -n console -t bitcoin/bin/sleep 3/usr/bin/tmux send-keys -t bitcoin:0 "cd /opt/bitcoin && ./startbitcoind.sh" C-m/bin/sleep 3/usr/bin/tmux send-keys -t bitcoin:1 "cd /opt/bitcoin && ./checkwallet start" C-m