Which pgrep flag inverts the match, showing processes that do not match the pattern?

• A. Invert the match: -v
• B. Match the pattern by user: -u
• C. Show only the most recent process: -n
• D. List all processes: -l

Answer: (A)

In pgrep, you can flip what you’re selecting with the invert-match flag. This makes pgrep return processes whose names do not match the provided pattern, rather than those that do match. For example, using the invert flag with a pattern like ssh will list all processes whose names do not contain ssh. You can combine this with other options (like filtering by user or limiting to the newest process), but the essential idea is that this flag reverses the match logic to show non-matching processes.