Fish Shell – Friendly Interactive Shell

Fish is a smart and user-friendly command-line shell for Linux, macOS, and the rest of the family. With features like autosuggestions, syntax highlighting, and web-based configuration, it works out of the box.

Key Features

• Autosuggestions: Suggests commands as you type
• Syntax Highlighting: Real-time command validation
• Web Config: Browser-based configuration
• Tab Completion: Smart, context-aware completion
• Scripting: Clean, consistent scripting syntax

Installation

Install Fish on Ubuntu:

sudo apt-add-repository ppa:fish-shell/release-3
sudo apt update
sudo apt install fish

# Set as default shell
chsh -s /usr/bin/fish

Usage Examples

Fish configuration:

# Open web config
fish_config

# Set environment variable
set -Ux EDITOR vim

# Define function
function mkcd
    mkdir -p $argv[1] && cd $argv[1]
end

# Save function
funcsave mkcd

Benefits

Fish provides a modern shell experience without configuration. Its sensible defaults and discoverable features make it ideal for users who want productivity without complexity.

Download Fish Shell