Comparison of operating systems

These tables compare general and technical information for a number of widely used and currently available operating systems.

Note: Because of the large number and variety of available Linux distributions, they are all grouped under a single entry; see comparison of Linux distributions for a detailed comparison. There are also a variety of BSD operating systems, covered in comparison of BSD operating systems.

Commands
For POSIX compliant (or partly compliant) systems like FreeBSD, Linux, Mac OS X or Solaris, the basic commands are the same because they are standardized.