[Rotate Raspberry Pi Display from Terminal] #raspberry-pi

rotate_pi.sh

INSTALLATION
We've created a one-liner that automates the installation procedure. To get started with this display, simply execute curl -L http://coreelec.io/2q | bash

If you want to see what this script does before running, save it to a file with curl -L http://coreelec.io/2q >> lcd35-installer

You can roll back to using the regular HDMI output at any time by executing the included LCD_hdmi script.

https://core-electronics.com.au/3-5inch-display-module-touch-lcd-with-stylus-for-raspberry-pi-3.html

To rotate your display, simply enter display_rotate or lcd_rotate at the bottom of your config file:

#rotate 0 degrees
display_rotate=0

#rotate 90 degrees clockwise
display_rotate=1

#rotate 180 degrees
display_rotate=2

#rotate 270 degrees
display_rotate=3

You can also flip your display by adding the following:

#flips the display vertically
display_rotate=0x20000

#flips the display horizontally
display_rotate=0x10000

Once you've made those changes, hit Ctrl+X and then Y to save, and you’ll need to reboot in order for any of those changes to take effect, so just use:

sudo reboot