The way the shell runs nu is to create a new shell process as if sh nu were typed. This shell process is called a sub shell (a shell process invoked by the current shell).

The purpose of this project was to become more familiar with the concepts of process control and signalling. So, I wrote a simple Unix shell program that supports job control for one of my assignme ...

Semantics-driven static analysis could be used to improve the safety, correctness, and performance of Unix, Linux, and macOS shell scripts, researchers say.

Bug in Bash shell creates big security hole on anything with *nix in it [Updated] Could allow attackers to execute code on Linux, Unix, and Mac OS X.