Final test: Bash: text processing and scripts

One correct answer

The nightly backup takes 40 minutes. A colleague added the same script to cron like this: flock /run/lock/backup.lock /home/student/sched-lab/backup.sh — without -n. What happens if cron fires in the middle of a backup?

• A The second backup runs in parallel with the first.
• B The second backup exits at once with status 1.
• C The second backup waits for the first to end and runs right after it.