Is there a way to run android shell commands in termux?

[deoxal]

This command works in adb: getevent -lc4 /dev/input/event0 but I can't use wireless debugging because it gets disabled every time I reboot.

I don't know how well this will work for what I want to do unless I have a wakelock because the battery life on my Pixel 8a is not that great. Is there a way to listen for events such as hardware keypresses without having an endless loop keeping the CPU awake?

[agnostic-apollo]

No info on what you are actually trying to listen to and what you intend to do with the events. I suggest you read https://github.com/termux/termux-community/blob/site/site/pages/en/rules/how-to-ask-report-and-request.md

And you likely should be able to use apps like Tasker and/or AutoInput to listen and react to events which use android accessibility service instead of a for loop.

[deoxal]

I am trying to listen for hardware keypresess in order to add additional actions when the power or volume buttons are pushed. I don't see why my reason for doing so is necessary to answer my question though.

I have tasker and auto input and I am also trying to do this with that but I do not understand how to create tasks very well and also I encountered a bug that prevented me from doing what I want with Tasker which I contacted the dev about and is helping me with.

All I see for Auto Input is how to detect the coordinates of a touch on the screen not hardware key presses. And on the tasker wiki, it actually said detecting keypresess is not possible but I don't believe that.

Can Tasker detect volume button presses ?
No, sorry, that's not possible ATM.
The closest you can get is to detect changes in a volume variable (e.g. %VOLR for the ringer volume) via event Variable Set.

https://tasker.joaoapps.com/userguide/en/faqs/faq-how.html

[agnostic-apollo]

AutoInput has a AutoInput Key Tasker Event that can be used to detect volume key presses. You will need to enable its accessibility service in Android Settings and the Intercept Keys toggle in AutoInput app itself.