LPI Exam Questions

log as well as new content as it is appended to the file by another process?

Which of the following commands will display the last 30 lines of /var/log/bigd.log as well as new content as it is appended to the file by another process?

A.
cut -30 -v /var/log/bigd.log

B.
head -30 -e /var/log/bigd.log

C.
tail -f -n 30 /var/log/bigd.log

D.
tac -30 /var/log/bigd.log

E.
cat -r -n 30 /var/log/bigd.log

Explanation:
From the man pages:
tail – output the last part of files