Exam LX0-103 topic 3 question 22 discussion

The effect of the egrep command when the -v option is used is option B: it only outputs non-matching lines. The -v option inverts the match, so instead of showing lines that match a pattern, it shows lines that do not match the pattern. egrep is a command-line tool that is used to search for text patterns in files or streams of text. It stands for "extended grep" and is similar to the grep command, but with more advanced pattern matching capabilities. egrep uses regular expressions to match patterns in the text, and it can search for patterns that include special characters, such as metacharacters and quantifiers. These allow for more complex and flexible pattern matching.