Каков файл контрольного датчика в / папке мусорного ведра человечности? Что это делает?

на основе файла /bin/monitor-sensor можно просто искать детали пакета

например: https://packages.ubuntu.com/search? mode=filename&suite=eoan&section=all&arch=any&keywords=monitor-sensor&searchon=contents

Пакет iio-sensor-proxy (2.8-0ubuntu1)

затем можно сделать apt show iiiio-sensor-proxy

pratap@i7-4770:~$ apt show iio-sensor-proxy
Package: iio-sensor-proxy
Version: 2.8-0ubuntu1
Priority: optional
Section: utils
Origin: Ubuntu
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Original-Maintainer: Ritesh Raj Sarraf <rrs@debian.org>
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 167 kB
Depends: libc6 (>= 2.7), libglib2.0-0 (>= 2.39.90), libgudev-1.0-0 (>= 146), systemd
Homepage: https://github.com/hadess/iio-sensor-proxy
Task: ubuntu-desktop-minimal, ubuntu-desktop, ubuntu-desktop-minimal-default-languages, ubuntu-desktop-minimal-default-languages, ubuntu-desktop-minimal-default-languages, ubuntu-desktop-minimal-default-languages, ubuntu-desktop-minimal-default-languages, ubuntu-desktop-minimal-default-languages, ubuntu-desktop-minimal-default-languages, ubuntu-desktop-default-languages, ubuntu-desktop-default-languages, ubuntu-desktop-default-languages, ubuntu-desktop-default-languages, ubuntu-desktop-default-languages, ubuntu-desktop-default-languages, ubuntu-desktop-default-languages, kubuntu-desktop, lubuntu-desktop, ubuntustudio-video, ubuntustudio-publishing, ubuntukylin-desktop, ubuntu-mate-desktop, ubuntu-budgie-desktop
Supported: 9m
Download-Size: 35.5 kB
APT-Manual-Installed: no
APT-Sources: http://in.archive.ubuntu.com/ubuntu eoan/main amd64 Packages
Description: IIO sensors to D-Bus proxy
 Industrial I/O subsystem is intended to provide support for devices
 that in some sense are analog to digital or digital to analog convertors
 .
 Devices that fall into this category are:
  * ADCs
  * Accelerometers
  * Gyros
  * IMUs
  * Capacitance to Digital Converters (CDCs)
  * Pressure Sensors
  * Color, Light and Proximity Sensors
  * Temperature Sensors
  * Magnetometers
  * DACs
  * DDS (Direct Digital Synthesis)
  * PLLs (Phase Locked Loops)
  * Variable/Programmable Gain Amplifiers (VGA, PGA)
 .
 Many ultrabooks ship with some of these devices. iio-sensor-proxy is
 intended to serve as a proxy, providing access to these devices through
 a D-Bus interface

pratap@i7-4770:~$