Bash script template

template.sh

#!/usr/bin/env bash
#/ Script Name: template.sh
#/ Author: jRimbault
#  Date:   2017-04-06
#/
#/ Description:
#/   This is a template file meant to be used for all my future
#/   bash scripting.
#/
#/ Run Information:
#/   I shoud write here informations about how and why to run
#/   this script.
#/
#/ Usage: template.sh <template>
#/
#/ Options:
#/   --help, -h display this help
usage()
{
  grep "^#/" "$0" | cut -c4-
  exit 0
}

# define paramters here
args()
{
  while [[ $# -gt 0 ]]; do
    case "$1" in
      -h|--help)
        usage
        ;;
    esac
    shift
  done
}

set -euo pipefail

# cleanup if necessary triggered on bad exit code
cleanup()
{
  echo
}

# main
main()
{
  echo
}

# do not execute script if it is sourced by another
if [[ "${BASH_SOURCE[0]}" = "$0" ]]; then
  trap cleanup SIGHUP SIGINT SIGTERM
  # for demo purposes, require at least 1 one arg
  [[ $# -lt 1 ]] && usage
  args "$@"
  main "$@"
fi