import sys

print(sys.argv[1].lower())

puts ARGV[0].downcase

console.log(process.argv[2].toLowerCase())

console.log(Deno.args[0].toLowerCase())

<?php

echo strtolower($argv[1]);

cat(tolower(commandArgs(trailingOnly = TRUE)))

use strict;
use warnings;
print lc($ARGV[0]);

class Main{
    public static void main(String[] args){
        String user = args[0];
        System.out.println(user.toLowerCase());
    }
}

file_path="$1"

if [ -z "$file_path" ]; then
  echo "Usage: $0 <file_path>"
  exit 1
fi

tr '[:upper:]' '[:lower:]' <<< "$file_path"

file_path="$1"

if [ -z "$file_path" ]; then
  echo "Usage: $0 <file_path>"
  exit 1
fi

echo "${file_path,,}"

print(arg[1]:lower())

class Arguments
{
  public static void Main(string[] args)
  {
    Console.WriteLine(args[0].ToLower());
  }
}

package main

import (
	"fmt"
	"os"
	"strings"
)

func main() {
	fmt.Println(strings.ToLower(os.Args[1]))
}

import Foundation

let args = CommandLine.arguments

guard args.count > 1 else {
    print("Usage: \(args[0]) <argument>");
    exit(1)
}

print(args[1].lowercased())

use v6;

my $arg = @*ARGS[0];
say $arg.lc;

use std::env;

fn main() {
    let user = env::args().nth(1).unwrap();
    println!("{}", user.to_lowercase());
}