Shell Scripting: Persist aliases and other configuration in Fish Shell

Join the AI Workshop to learn more about AI and how it can be applied to web development. Next cohort February 1st, 2026

The AI-first Web Development BOOTCAMP cohort starts February 24th, 2026. 10 weeks of intensive training and hands-on projects.

Note to self: whenever making aliases in Fish (or any other config!), add them to the ~/.config/fish/config.fish file.

So they will be persisted after a system reboot.

For example I set ls to be an alias of exa and cat to be an alias of bat:

Lessons in this unit:

0: Introduction
1: Introduction to Shells
2: Bash Basics
3: Writing Shell Scripts
4: Variables and Environment Variables
5: Loops and Arrays
6: Shell Script Functions
7: Creating Aliases
8: Tips and Tricks
9: The Fish Shell
10: ▶︎ Persist aliases and other configuration in Fish Shell
11: How to add a path to Fish Shell
12: Fish Shell, how to avoid recording commands to history
13: Fish Shell, how to remove the welcome message
14: How to replace all filenames with space with underscore using a shell script
15: How to update all npm packages in multiple projects that sit in subfolders