How do you share history between terminals in zsh?

Question

How can it be achieved so that every command entered, is visible in every open terminal?

When having multiple terminals open, the history isn't shared, i.e. what you entered in one terminals history, doesn't show up in another one. Think of an alternative to Bash's PROMPT_COMMAND="history -a" (which saves the history before the prompt is beeing displayed).

Answer 1

In the .zshrc file, the following values accomplish this:

• To save every command before it is executed (this is different from bash's history -a solution):

  setopt inc_append_history
  

• To retrieve the history file everytime history is called upon.

  setopt share_history