Unix Structure

• Applications environment
  • Shell
  • Mail
  • Text editors (vi, emacs, jove)
  • Text processing packages (nroff, troff, TeX)
  • Source code control system (SCCS)
  • Development utilities (as, ld, cpp, cc)
  • Other utilities (who, date, wc, grep, comp)
• Operating system
  • Support programs for applications