Introduction to Linux I – Chapter 03 Exam Answers 2019 + PDF file

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  1. If you want to see the entire contents of a text file, you can use the _____ command:
    • dog
    • type
    • wc
    • cat
  2. The expand and unexpand commands change: (choose two)
    • New lines
    • Carriage returns
    • Spaces
    • Tabs
  3. The head -n -1 readme.txt command will:
    • Show the first character of every line of readme.txt
    • Display all but the last line of readme.txt
    • Number the lines of readme.txt
    • Display the first line of readme.txt
  4. Why would you press CTRL+C when executing tail?
    • To capture the output into a file
    • To complete the processing of a file
    • To stop tail from following a file
    • To get tail to copy the text it is outputting
  5. Which command merges two files like related tables in a database?
    • paste
    • join
    • sql
    • query
  6. Which command will merge two files together line by line?
    • combo
    • paste
    • join
    • merge
  7. Which of the following is a non-interactive editor?
    • ed
    • vi
    • nano
    • sed
  8. If you want to break apart a large file into smaller files, you can use:
    • split
    • cat
    • break
    • dump
  9. Select the function that the tr command cannot perform:
    • Translate from one set of characters to another
    • Delete specific characters
    • Eliminate duplicate characters
    • Insert characters
  10. Which command will remove consecutive duplicate lines from a file?
    • unique
    • uniq
    • dup
    • dedup
  11. If you want to extract fields from a file, you can use:
    • cols
    • extract
    • fields
    • cut
  12. If you want to set the maximum line width for a text file, you can use:
    • od
    • fmt
    • pager
    • format
  13. This command displays binary files in a variety of representations:
    • od
    • format
    • cut
    • cat
  14. If you want a file to be displayed with its lines numbered, you can use:
    • nl
    • cut
    • fmt
    • number
  15. To put the lines of a file in alphabetical order, you can run:
    • uniq
    • sort
    • cat
    • paste
  16. The _____ command provides many options for formatting a file for printing.
    • pr
    • format
    • print
    • header
  17. Two tables have columns with the same field names. What is required in order to join the two tables?
    • Change field names in one of the tables to make it unambiguous
    • Join between such tables cannot be created
    • Create a dummy table which has no common fields
    • Field names must be prefixed by the table name and a period

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