[Snippets] Snippets for bash

snippets.sh

#!/usr/bin/env bash

set -e

function help() {

local _FILE_NAME
_FILE_NAME=`basename ${BASH_SOURCE[0]}`

cat << HELP_USAGE

Description:

Usage: $_FILE_NAME [-h|--help] [-o=|--option=<option_value>]

Examples:
    $_FILE_NAME -o=my_value
    $_FILE_NAME --option=my_value
    
Options:
    -h|--help
        Show this message.

    -o=|--option=<option_value>
        Use key value option.

Author:
    YOUR NAME AND CONTACT INFO
    e.g. Test User <test_user@gmail.com>

Report bugs to <TEST_USER@gmail.com>.

HELP_USAGE
}

# Utility functions


# Default values for variables
option_value="default_value"

# Parse arguments
for arg in "$@"; do
    case $arg in
        -h|--help)
            help
            exit
            ;;
        -o=*|--option=*)
            option_value="${arg#*=}"
            ;;        
        *)
            # Skip unknown option
            ;;
    esac
    shift
done

# Define new variables with respect to the parsed arguments