CSC 275 - Operating Systems Practicum

Dr. R. M. Siegfried

Assignment #11 - Using Filters

Due Friday, December 2, 2022 (Section 1)

Due Wednesday, December 7, 2022 (Section 2)

• Use ls and sort to sort files based on number of bytes (using the +5 to skip columns and -n to sort as a number).
• Use ls and fgrep to list the files created in September.
• Use tr to invert the case in a file with 5-10 lines of text.
• Given the list of names below, combine UNIX commands and filters to display the number of people named John, Robert, Katherine (or Catherine).

  John Adams                           George Washington
  Catherine Bach                       Robert E. Lee
  Katherine Smith                      David Blake
  John Smith                           Emily Post
  John Patrick Kelly                   Everett Smith
  Martin Short                         Howard Tall

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