DEMO.md

Here are a few examples of commands:

welcome - Prints a welcome message

By default bash is used as interpreter for the commands.

echo "Welcome to makedown.sh"

interpreter-chain - Choose a specific interpreter

When several code blocks are present, they are executed in order.

interpreter-chain Choose a specific interpreter

When several code blocks are present, they are executed in order.

echo "step 1: I run in sh"

echo "step 2: I run in bash"

echo "step 3: I run in zsh"

#!/usr/bin/env deno

const message: string = "step 4: I run in deno";
console.log(message);

Some handy helpers

A set of handy file system helpers is available.

dirsize Prints the total size of a directory

du -sh "$2"

find-files Finds files in a directory recursively

find "$1" -type f

kill-port Kills a process listening on a port

kill -9 $(lsof -t -i:$1)

prime-numbers Prints the first 100 prime numbers

#!/usr/bin/env ruby

def is_prime?(number)
  return false if number <= 1
  (2..Math.sqrt(number)).none? { |i| number % i == 0 }
end

def first_n_primes(n)
  primes = []
  number = 2
  while primes.length < n
    primes << number if is_prime?(number)
    number += 1
  end
  primes
end

# Print the first 100 prime numbers
first_100_primes = first_n_primes(100)
puts first_100_primes

argv command line arguments test

#!/usr/bin/env python

import sys

print(sys.argv)