Lpi LPI Linux Essentials 010-100 Questions & Answers

• Question 41:

  How can the current directory and its subdirectories be searched for the file named MyFile.xml?

  A. find . -name MyFile.xml

  B. grep MyFile.xml | find

  C. grep -r MyFile.xml .

  D. less MyFile.xml

  E. search Myfile.xml ./

  Correct Answer: A

• Question 42:

  What is the output of the following command?

  for token in a b c; do

  echo -n ${token};

  done

  A. anbncn

  B. abc

  C. $token$token$token

  D. {a}{b}{c}

  E. a b c

  Correct Answer: B

• Question 43:

  What two character sequence is present at the beginning of an interpreted script? (Please specify the TWO correct characters only)

  A. #!

  Correct Answer: A

• Question 44:

  The output of the program date should be saved in the variable actdat. What is the correct statement?

  A. actdat=`date`

  B. set actdat='date'

  C. date | actdat

  D. date > $actdat

  E. actdat=date

  Correct Answer: A

• Question 45:

  Which command will display the last line of the file foo.txt?

  A. head -n 1 foo.txt

  B. tail foo.txt

  C. last -n 1 foo.txt

  D. tail -n 1 foo.txt

  Correct Answer: D

• Question 46:

  How can the normal output of a command be written to a file while discarding the error output?

  A. command >2>file 1and>/dev/null

  B. command < output > /dev/null

  C. command > discard-error > file

  D. command > /dev/null 2and>1 output

  E. command >file 2>/dev/null

  Correct Answer: E

• Question 47:

  Which of the following commands redirects the output of cmd to the file foo.txt, in which an existing file is overwritten?

  A. cmd || foo.txt

  B. cmd | foo.txt

  C. cmd andand foo.txt

  D. cmd >> foo.txt

  E. cmd > foo.txt

  Correct Answer: E

• Question 48:

  Which approach will provide a listing of the contents in a tar archive?

  A. Use the tar command with -t.

  B. Use the grep command.

  C. Use the find command.

  D. Use the zless command.

  E. Use the zlist command.

  Correct Answer: A

• Question 49:

  Which of the following commands will output a list of all of the file names, under your home directory and all subdirectories, which have file names ending with .pdf?

  A. search .pdf

  B. ls -name -R '*.pdf'

  C. find /home/*.pdf

  D. find ~ -name '*.pdf'

  Correct Answer: D

• Question 50:

  Which of the following commands increases the number of elements in a directory?(Choose two)

  A. touch newfile

  B. create newfile

  C. ls newfile

  D. rmdir newdirectory

  E. mkdir newdirectory

  Correct Answer: AE