Weird character zsh in emacs terminal

Question

When using the terminal in emacs (M-x term) under MacOS for some reason it always posts the characters 4m before every line in zsh and always prints 2 lines containing the u

Answer 1

You don't have eterm-color terminfo. First, you try to add following S-exp in your configuration file and evaluate.

;; Use Emacs terminfo, not system terminfo
(setq system-uses-terminfo nil)

If problem is not resolved previous setting, you should create eterm-color terminfo by using following command. (terminfo path may different from your system)

# If you use Cocoa Emacs or Carbon Emacs
tic -o ~/.terminfo /Applications/Emacs.app/Contents/Resources/etc/e/eterm-color.ti