Free LFCS Exam Dumps

Question 6

What output will the following command produce? seq 1 5 20

A. 161116
B. 151015
C. 1234
D. 2345
E. 5101520

Correct Answer:A

Question 7

In a nested directory structure, which find command line option would be used to restrict the command to searching down a particular number of subdirectories?

A. -dirmax
B. -maxdepth
C. -maxlevels
D. -n
E. -s

Correct Answer:B

Question 8

Which of the following commands replaces each occurrence of 'bob' in the file letter with 'Bob' and writes the result to the file newletter?

A. sed '/bob/Bob' letter >newletter
B. sed s/bob/Bob/ letter < newletter>sed 's/bob/Bob' letter > newletter
C. sed 's/bob/Bob/g' letter > newletter
D. sed 's/bob, Bob/' letter > newletter

Correct Answer:D

Question 9

When running the command sed -e "s/a/b/" /tmp/file >/tmp/file
While /tmp/file contains data, why is /tmp/file empty afterwards?

A. The file order is incorrec
B. The destination file must be mentioned before the command to ensure redirection.
C. The command sed did not match anything in that file therefore the output is empty.
D. When the shell establishes the redirection it overwrites the target file before the redirected command starts and opens it for reading.
E. Redirection for shell commands do not work using the > characte
F. It only works using the | character instead.

Correct Answer:C

Question 10

CORRECT TEXT
Which environment variable should be set in order to change the time zone for the commands run from within the environment variable's scope? (Specify the variable name only.)

Correct Answer:TZ