Is it possible to get exact command when triggering shortcut?

by
alexander_linux_user
from LinuxQuestions.org on (#5M800)
For example, I want to know what command invokes when I hit Fn + F12 to increase brightness. Can I get this or any other command when I trigger some shortcut (what's happening behind the scenes) somehow?

Distro: Debian 10 (stable) XFCElatest?d=yIl2AUoC8zA latest?i=1KV-GMGGIKI:4IAiG595akA:F7zBnMy latest?i=1KV-GMGGIKI:4IAiG595akA:V_sGLiP latest?d=qj6IDK7rITs latest?i=1KV-GMGGIKI:4IAiG595akA:gIN9vFw1KV-GMGGIKI
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