how to simulate pressing an arrow key in linux bash

Question

I've worked with powershell before but I'm new to linux bash scripts. Say I wanted to write a script that just presses a key (left arrow) in regular intervals (0.05s). How could I go about doing this?

Answer 1

Use Xdotool. Its usage is:

xdotool key SPECIFY_KEY

and replace SPECIFY_KEY with the required keystroke,
or in your case:

xdotool key Up/Down/etc.