Forty years ago this summer, a programmer sat down and knocked out in one month what would become one of the most important pieces of software ever created. In August 1969, Ken Thompson, a programmer ...

I booted UNIX V4 (first C rewrite) in a PDP‑11 emulator. It feels tactile—no backspace, staggered print, slower typing, and ...

If you're new to the UNIX operating system, especially if you're familiar with Windows, you'll find that the file access control mechanisms might not be exactly what you expect. File permissions and ...

It took careful work to recover the UNIX V4 operating system from the 9-track magnetic tape. The software is foundational for ...

The use of the Linux operating system is becoming more common throughout the IT industry. Many corporate IT departments are using Linux to complement existing Unix systems using special-purpose Linux ...