1. string upper
    • Converts a string to uppercase
  2. string lower
    • Converts a string to lowercase
  3. ~/.config/fish/config.fish
    • Contains the configuration for the Fish shell
    • See the Fish Tutorial for more information
  4. ~/.config/fish/functions
    • Store functions in this directory
  5. ~/.local/share/fish/fish_history
    • YAML file with fish history ↗