In a terminal window running alert 9
gives me a popup saying 9
However, running alert 9
in shell_exec
gives nothing.
What should I be aware of?
Just to mention: other commands work neither that interact with the GUI. I am using gnome 3.16.3
UPDATE
My concrete goal is to run an xdotool command using the gnome environment. ( xdotool key ctrl+shift+u
)