Linux MCQs with answers Page - 50

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Q. Assuming the files fileA, fileB, fileAB, fileBC and fileABC, exist in a directory, which files match with the pattern file[ABC]?

  • (A) fileAB, fileBC and fileABC
  • (B) fileA and fileB
  • (C) fileABC
  • (D) fileA, fileB and fileABC

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Q. What will be printed for the command below?

Code: 
$ grep –c “^echo” abc
  • (A) The count of lines that do not contain the pattern echo in file abc
  • (B) The count of lines which begin with the pattern echo in file abc
  • (C) The count of lines that ends with the pattern echo in file abc
  • (D) None of these

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Q. Which one is used to select only one copy of the repeated lines?

  • (A) uniq –I
  • (B) uniq -c
  • (C) uniq -d
  • (D) uniq -u

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Q. Indicate the right option to search for BOB, Bob, BOb or BoB?

  • (A) grep -v ‘Bob’ files
  • (B) grep ‘[BOB]’ files
  • (C) grep ‘B[oO][bB]’ files
  • (D) grep –i Bob files

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Q. Indicate the right option to search for anything not a letter or number

  • (A) grep ‘^[a-zA-Z0-9]’
  • (B) grep ‘[^a-zA-Z0-9]’
  • (C) grep ‘[a-zA-Z0-9]’
  • (D) None of the above

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Q. Which command will you use to see the available routes?

  • (A) show route
  • (B) route status
  • (C) netstat -r
  • (D) None of these

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Q. The permission -rwxr-xr-t represented in octal expression will be

  • (A) 2754
  • (B) 1754
  • (C) 1755
  • (D) 0777

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Q. With a umask value of 112, what is the default permission assigned to newly created regular file?

  • (A) -rw-rw-r–
  • (B) -r-xr-x-r–
  • (C) -rw-rw-r–
  • (D) —x–x-wx

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Q. Given the command $ chmod o-w datafile

  • (A) clears write permission to others for datafile
  • (B) clears write permission to everyone for datafile
  • (C) sets write permission to others for datafile
  • (D) sets write permission to everyone for datafile

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Q. Which of these commands will set the permissions on file textfile to read and write for the owner, read for the group, and nothing for everyone else?

  • (A) chmod rw r nil textfile
  • (B) chmod 310 textfile
  • (C) chmod 640 textfile
  • (D) chmod 046 textfile

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