sh - user command shell
/bin/sh [-c command]
This is a simple command interpreter. The shell provided with OS/161 (or, perhaps, provided as a solution set, if you had to write a shell) is a simple shell accepting some basic Unix-like syntax.
sh uses these system calls:
This shell's basic functionality should work properly once the basic system calls assignment is complete. Some features may require additional support which may be part of subsequent assignments.