With all the different distributions of Linux available -- many for free -- what distinguishes one over another? Most have the same set of standard bells and whistles. A few have support options that might be appealing for enterprise-level deployments.

Nevertheless, underneath the surface, they all share pretty much the same code base. After all, that's what makes Linux so intriguing: busy open source developers all over the planet are always adding features or fixing bugs, and anybody can take advantage of their work.

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