To instal wordpress in a linux server, follow the steps below:
1.Navigate to the Document root of the domain.
2. wget http://wordpress.org/latest.tar.gz
3. tar -xzvf wordpress-3.3.1.tar.gz
4. mv wordpress/* .
5. cp -p wp-config-sample.php wp-config.php
6. Open wp-config.php and give the DB info.
7. Open url : domainname/wp-login.php
8. Fill the details and click install wordpress.
Thats it. You have successfully installed wordpress :)