For months SCO has claimed that an exhaustive examination of the Linux source code has revealed software that has been copied line-by-line from its Unix System V code base. The Linux community has ...

Novell purchased rights to the Unix System V code for $150 million from AT&T Corp. in 1992, but later sold the Unix rights, which were eventually acquired by SCO.

SCO continues to keep the Unix System V source code under wraps, a standard tactic in many intellectual property disputes. After all, you wouldn’t prove your secrets have been stolen by ...

Written by Steven Vaughan-Nichols, Senior Contributing Editor June 2, 2025 at 11:02 a.m. PT wellesenterprises/Getty Images Long before Linux was introduced, I worked as a Unix system administrator.

Lindon, Utah-based SCO filed a $1 billion lawsuit in March challenging IBM's alleged donation of Unix Systems V code to the open-source community that develops Linux.

It compared source code from the Unix System V release 4.1 software that SGI has licensed from SCO with a version of the Linux kernel released this June, SGI said.