Exec=lxterminal -e "bash -c '/home/joao/.config/tempo.sh' "

This still do nothing when I specify on launcher file.

Thanks for help.

There should be no quotes around what you are runnning, the items after the -e are interpreted verbatim,

unless you also wrap it in a shell

but I would go for it without the shell.

In the launcher with or without quotes no work.

If I put the lxterminal -e /home/joao/.config/tempo.sh in terminal this is the result →

$ lxterminal -e /home/joao/.config/tempo.sh
/run/user/1000/.lxterminal-socket-:0

Opens new window with new terminal - lxterminal - and code work.

Is the desktop entry located in the ~/Desktop directory?

Does its properties allow launching? What do you see when you right click on the icon?

I use Lxmenu to add launchers to the menu no need any ./desktop directory →

http://lxmed.sourceforge.net/

I already use other launchers to add in the meu and works well example →

I click on te launcer on the menu and compton launch with the options that I write.

If I click on the launcher with right click I have options like → launch, launch in terminal, Open with etc...