Nix Eval

Nix Eval is used to evaluate Nix Expressions, right inside of the terminal. Note: Unlike nix repl, we will be provided a interactive session.

  1. Within the directory you want to evaluate you configuration, type nix eval .# into a terminal.
  2. From here, you can use the tab key to see what other options could be presented.
  3. Once you find the options or files you want to evaluate, press enter.

Source: Nix Reference Manual - nix eval