Hello.
I have issue with my console. I reinstalled my system and now I have my name and “%” instead name and “~$”. What should I do?
% this is the prompt of zsh shell
OK so what should I do to back to my previous “old” shell? 
Guess you want bash.
first check if bash is installed with cat /etc/shells
it should give something like
cat /etc/shells
# Pathnames of valid login shells.
# See shells(5) for details.
/bin/sh
/bin/bash
/usr/bin/git-shell
/bin/zsh
/usr/bin/zsh
If bash is there just run
chsh -s /bin/bash
logout and bash should be active
It works:-) Thank you very much:-)