urxvt-bell-command (1) Linux Manual Page
NAME bell-command – execute a command when the bell rings DESCRIPTION Runs the command specified by the "URxvt.bell-command" resource when a bell event occurs. For example, the following pops up a notification bubble with the text “Beep, Beep” using notify-send: URxvt.bell-command: notify-send "Beep, Beep" Index
