You have several plain-text firewall logs that you must review to evaluate network traffic. You know that in order
to do fast, efficient searches of the logs you must use regular expressions.
Which command-line utility are you most likely to use?
A.
Grep
B.
Notepad
C.
MS Excel
D.
Relational Database
Explanation:
grep is a command-line utility for searching plain-text data sets for lines matching a regular expression.
https://en.wikipedia.org/wiki/Grep