helloworld

#!/usr/bin/env bash
# Project: bash-tmpl
# Filename: helloworld
# Description: Simple hello world in bash
# Developed by: Juan Pineda <juan.david.pineda@gmail.com>
# Date: Oct6, 2021.
# Globals:
# Arguments:
# Outputs:
# Returns: 

function err {
  echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
}

function print_hello {
  echo "Hello World!"
}

function main {
  print_hello
}

# Main
[ $# != 0 ] \
  && { err "ERROR. Usage: $0"; exit 1; }

main
exit 0