I've noticed on some Linux servers, that bash has a very elegant feature that adds visual breaks. What program is it that appends the -------- <time> after each command? 
What configuration can insert lines between commands?
bash
What you are seeing is a modified PS1 environment variable.PS1 is a variable that defines the behavior of the default interactive prompt. By default PS1 is set to something like \u@\h \w, where:\u is the username\h is the hostnameand \w is the working directory.To set up a new PS1 environment variable you can always export PS1=<the_new_PS1> or you may set one at either .bash_profile or .bashrc.In the picture you have linked to, PS1 is set to:\[\033[00m\]\[\033[0;37m\]$fill \t\n\[\033[00m\]${debian_chroot:+$(debian_chroot)}\u@\h:\w\$@choroba has also done a very good job with providing you with a guide to help you set up your PS1 variable to have the same effectIf you would like to read more about PS1 you can do so here. You can also look at various examples on how you could possibly set up PS1 here