xev:tldr:9ec69

xev: Monitor all X events of the root window instead of creating a new one.

$ xev -root

try on your machine

The command "xev -root" is used to launch the xev tool, which is part of the X Window System, and it specifically targets the root window of the display.

The X Window System is a graphical user interface (GUI) framework used in Unix-like operating systems. It allows users to interact with graphical applications and manage windows.

xev is a utility that allows you to monitor and record X server events, such as key presses, button clicks, and window events. By default, xev opens a window and displays the events received by that window. However, with the "-root" flag, xev targets the root window.

The root window represents the background of the X Window System, containing the desktop and any visible application windows. By running "xev -root", you can observe and log all the X server events occurring on the root window, providing a way to inspect and analyze the low-level user input and windowing events within the X system.

In summary, "xev -root" launches the xev tool and captures X server events from the root window.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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