Blogging Command-Line App

Create a command-line blogging application which implements following commands in bash

Status	Command	Action
ToDo	blog.sh	Return name of your application
ToDo	blog.sh --help	List help text and commands available
ToDo	blog.sh post add "title" "content"	Add a new blog post with the specified title and content
ToDo	blog.sh post list	List all blog posts
ToDo	blog.sh post search "keyword"	List all blog posts where “keyword” is found in the title and/or content
ToDo	blog.sh category add "category-name"	Create a new category
ToDo	blog.sh category list	List all current categories
ToDo	blog.sh category assign <post-id> <cat-id>	Assign the specified category to a post
ToDo	blog.sh post add "title" "content" --category "cat-name"	Add a new blog post with the specified title, content and assign a category to it. If the category doesn’t exist, it will first be created