I like to write in sh, Perl, to administer the server, find and eliminate the cause of a fault in the programs (Exim, DbMail, Apache, Nginx, PgSQL, MySQL) as well as edit the HTML code or the correct code in Perl or PHP. I worked with CMS: Movable Type, Wordpress, Joomla. I administer Linux server Centos, Debian, FreeBSD.