Introduction

• Topics:
  • Regular expressions
    • basic rules (see also course notes and UNIX in a nutshell, ch 6)
    • {} in more details
    • examples
  • Use of REs in various UNIX applications:
    • grep, egrep
    • vi,
    • sed,
    • emacs

  • short shell script
    • variables
    • return value of each UNIX command
    • if
    • for
    • case