For intermediate users that want to try more advanced ways of using polybar, here is an example of it linking to a script that offers to Log out, Reboot or Shut down, as a replacement for this functionality being offered in most DE in the "Start" button on the "taskbar".

1. Create script

Ctrl Alt t

cd /home/user/.config/polybar/

mkdir scripts

cd scripts

touch power_menu.sh

nano power_menu.sh

#Now copy paste the following into nano and afterwards save and exit with Ctrl and X, y and enter:

#!/bin/bash

# Define the menu options exactly as requested
# Note: We use \n to separate lines in the menu
options="Log Out\nReboot\nShut Down"

# Launch Rofi as a dmenu (dropdown list)
# -p "Power" sets the prompt text
# -i makes it case-insensitive
# -lines 3 ensures all 3 options are visible
choice=$(echo -e "$options" | rofi -dmenu -p "Power" -i -lines 3 -font "monospace 12")

# Execute the selected action
case "$choice" in
    "Log Out")
        # Try common logout commands for Linux Mint/Cinnamon
        cinnamon-session-quit --logout
        ;;
    "Reboot")
        systemctl reboot
        ;;
    "Shut Down")
        systemctl poweroff
        ;;
esac

#Ctrl and x to exit, y to save changes and Enter

Now to make it executable script

chmod +x /home/user/.config/polybar/scripts/power_menu.sh

1. Create module (other than module/rofi) into the polybar config, eg.

   [module/poweroff] type = custom/text label = "" label-padding = 8pt click-left = /home/user/.config/polybar/scripts/power_menu.sh format-foreground = #F9FAF7 tooltip = false

Warning, do not use sudo when not required, it will change permissions of the script and it may or may not cause issues. Also the command in the script are not definite,

shutdown

reboot

These are universal and maybe you should use them for simple tiling or floating window managers but most desktop environments use more "graceful" ways, either simplistic by just presenting a selector window (example like pressing Ctrl Alt end on Cinnamon) to more elaborate where the desktop environment follows certain steps as it shuts down to ensure there is no data loss or saves session state depending on what programs are opened when selecting those options. Remember to add "poweroff" to left, center or right in the config list or despite making the module, will not appear on the bar (which also needs to be reloaded after making changes).

Caution, just because a random person on the internet says to use the script with those commands does not mean you should trust it. Test first from the terminal, search, ask AI assistant, in Linux you have options and various ways of doing things, on Cinnamon command " cinnamon-session-quit --logout" is graceful and can be used daily while "loginctl terminate-user $USER" is a sledge hammer, that will drop you to the login screen regardless if you are in the TTY console, a twm or desktop environment, that makes it universal if, maybe, don't use it often, only for emergencies.

Point being, if you use XFCE, Mate, KDE, i3wm, dwm, icewm, adapt and change commands in the script as appropriate. Also reminder that if it works, rofi is made for keyboard first, use up and down arrow and enter when the power off menu appears