Question 101 of 135 from exam XK0-004: CompTIA Linux+

Question 101 of 135 from exam XK0-004: CompTIA Linux+

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Question

A user wants to list the lines of a log, adding a correlative number at the beginning of each line separated by a set of dashes from the actual message.

Which of the following scripts will complete this task? A.

#!/bin/bash LOG="/var/log/auth. log" nrlines=0 while read LINE do nrlines=$((nrlines + 1)) echo $nrlines --- ${LINE} done < ${LOG}

B.

#!/bin/bash LOG="/var/log/auth. log" nrlines=0 while read LINE do nrlines=*Snrlines ++ 1> echo $nrlines --- ${LINES} done

C.

#!/bin/bash LOG="/var/log/auth.1log' nrlines=0 while read LINE do nrlines=‘expr nrlines + 1° echo $nrlines --- ${LINE} done < ${LOG}

D.

#!/bin/bash LOG="/var/log/auth.1log' nrlines=0 while read LINE do nrlines=$(nrlines + 1) echo $nrlines --- ${LINE} done < ${LOG}

Explanations

D.

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