npm

xlsclients

List all client applications currently running on an X display.

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Source

About

List client applications running on a display

Commands

xlsclients

Examples

see all open windows and applications on my screen$ xlsclients
check what apps are running with their process IDs$ xlsclients -l
list running applications on a specific X display$ xlsclients -display :0
show window IDs for all open client applications$ xlsclients -m
get detailed info about running X clients and their names$ xlsclients -l -m