CS 3733 Operating Systems

Reading: Section 3.7 - 3.10 of PUP

• Brief discussion of directory structure in Unix (PUP 3.2.1)

• Hard links versus symbolic links

• Filters and redirection (PUP 3.4)
  • dup2 call.
  • Rirection of standard in and standard out.
  • The pipe system call (PUP 3.5)

• Representation of devices as special files
  • FIFOs (PUP 3.9)
  • The audio device (PUP 3.10)

SKILL: Understand how devices are represented by files