# Run a package once
nix run nixpkgs#hello

# Create a shell with multiple packages
nix shell nixpkgs#git nixpkgs#vim --command git --version

# Run a package with specific arguments
nix run nixpkgs#cowsay -- "Hello from Nix!"

# Run long-running applications: `tmux new -d 'nix run nixpkgs#some-server'`

# Format current flake
nix fmt

# Check formatting
nix fmt -- --check

# Convert a nix32 hash to SRI (sha256)
nix hash convert --hash-algo sha256 --from nix32 --to sri 1b8m03r63zqhnjf7l5wnldhh7c134ap5vpj0850ymkq1iyzicy5s

# Convert to nix32 explicitly
nix hash convert --hash-algo sha256 --to nix32 sha256-ungWv48Bz+pBQUDeXa4iI7ADYaOWF3qctBD/YfIAFa0=

# Fetch a tarball and print its nix32 hash
nix-prefetch-url --unpack https://example.com/source.tar.gz

# Convert the nix32 hash to SRI for fetchFromGitHub/fetchurl
nix hash convert --hash-algo sha256 --from nix32 --to sri <nix32-hash>

# Evaluate a simple expression
nix eval --expr '1 + 2'

# Inspect an attribute from nixpkgs
nix eval nixpkgs#hello.name

# Evaluate a local nix file
nix eval --file ./default.nix

# List keys in a set (useful for exploration)
nix eval --expr 'builtins.attrNames (import <nixpkgs> {})'

# Search for a package by name or description
nix search nixpkgs python3

# Let binding
let
  name = "Nix";
in
  "Hello ${name}"

# Function definition
let
  multiply = x: y: x * y;
in
  multiply 2 3

{
  a = 1;
  b = "foo";
}

#!/usr/bin/env nix
#! nix shell nixpkgs#bash nixpkgs#curl --command bash

curl -s https://example.com

#!/usr/bin/env nix
#! nix shell nixpkgs#python3 --command python3

print("Hello from Nix!")