In terms of the market share, at least, according to Wikipedia [1], Less than 1% is confirmed to be UNIX or Unix-like and non-Linux. The top operating systems

In terms of the market share, at least, according to Wikipedia [1], Less than 1% is confirmed to be UNIX or Unix-like and non-Linux. The top operating systems in order are: 0.3% BSD (97.8% of which is FreeBSD),[251] <0.1% Darwin,[252] <0.1% HP-UX,[253] <0.1% Solaris,[254] and <0.1% Minix. [1] https://en.wikipedia.org/wiki/Usage_share_of_operating_systems#Market_share_by_category https://en.wikipedia.org/wiki/Usage_share_of_operating_syste...