How to run a command in the background?

Question

linux

when choosing a second keyboard layout, the layouts icon appears, but disappears after a reboot

before reboot

after reboot

treated by the command
pkill dde-dock
how to execute this command in the background on each reboot, what and where to prescribe?

Answer 1

Which Linux distribution? What is DE? It's hard to help without that. General advice - put the command in /etc/rc.local - but this is definitely a crutch, you need to figure out what you have with the keyboard applet.