Thanks @GaVenga and @sawdoctor for your answers!
In which file, have you written this lines? In ~/.zshrc ?
As I am on Xfce, bash seems to be still the default shell, don’t it?
@philm wrote here this summer:
Gnome edition uses ZSH and Plasma and XFCE still bash.
At least bash is the default shell on my Xfce machine.
In the same thread, @cscs wrote:
Considering zsh still isnt a perfect drop-in replacement for bash …
So I don’t know if it is worth to change from bash to zsh…
Thanks anyway!