General category of Linux operating system.  Articles that fit a general Linux install or apply to many Linux OS would get listed here.  A subcategory of Programs or Software here would include softwares used by many Linux OS distributions.  Subcategories for specific Linux distributions like RedHat, Centos, Fedora, Ubuntu, SUSE, and others will be added later.  Check below for general Linux related articles and subcategories that may contain more articles.