Description

Displays information about your blog, mostly gathered from the information you supply in your User Profile and General Options from the WordPress Administration panels (Settings → General). It can be used anywhere within a page template. This always prints a result to the browser. If you need the values for use in PHP, use get_bloginfo().
Usage

Examples
Show Blog Title

Displays your blog’s title in a

tag.

Show Character Set

Displays the character set your blog is using (ex: utf-8)

Character set:

Show Blog Description

Displays Tagline for your blog as set in the Administration panel under General Options.

Parameters

Note that directory URLs are missing trailing slashes.

Using child-theme, that has parent-theme as the parent:

name = Testpilot
description = Just another WordPress blog
admin_email = admin@example

url = http://example/home
wpurl = http://example/home/wp

stylesheet_directory = http://example/home/wp/wp-content/themes/child-theme
stylesheet_url = http://example/home/wp/wp-content/themes/child-theme/style.css
template_directory = http://example/home/wp/wp-content/themes/parent-theme
template_url = http://example/home/wp/wp-content/themes/parent-theme

atom_url = http://example/home/feed/atom
rss2_url = http://example/home/feed
rss_url = http://example/home/feed/rss
pingback_url = http://example/home/wp/xmlrpc.php
rdf_url = http://example/home/feed/rdf

comments_atom_url = http://example/home/comments/feed/atom
comments_rss2_url = http://example/home/comments/feed

charset = UTF-8
html_type = text/html
language = en-US
text_direction = ltr
version = 2.9.2