multiple_choice
easy
Remember
redir
2 points
Question 5. CSCD240-E1-C
Which redirection sends only stderr of a command to a file err.log?
Work the drill
Answer on paper or in a terminal before revealing the ideal answer.
Ideal answer
B: 2> err.log
Misconception bank
Each row below is a plausible wrong answer, the thinking that produces it, and the remedy that corrects the misconception. These are the foundation of the multiple-choice framing and the targeted feedback a student receives after answering.
A: > err.log
Misconception. Redirects stdout.
Remedy. fd 1 = stdout; fd 2 = stderr.
C: &> err.log
Misconception. Redirects BOTH.
Remedy. &> is merge; 2> is stderr-only.
D: < err.log
Misconception. < is stdin.
Remedy. Input ≠ error output.
Authority mappings
Hover any chip for the mapping justification; click to open the authority record.
DCWF roles:
IT-451 System Administrator
DCWF tasks:
T0498
KU outcomes:
CD-BSP-O1
KU topics:
CD-BSP-T8i
O*NET tasks:
SOC 15-1212.00: task 6SOC 15-1212.00: task 7SOC 15-1244.00: task 1SOC 15-1244.00: task 2
NCAE errors:
WWW Content / failure: Failed to connect to hostWWW Content / timeout: TimeoutWWW Content / failure: Website cannot be reachedSSH Login / failure: Failed to connect to host: IPSSH Login / partial: The following users failed t.SSH Login / partial: The following users failed t.
Course-artifact links
Lectures
- CSCD240-S26-L07. I/O redirection, aliases, source, .bashrc, env
Lab questions
- CSCD240-S26-LAB4: Redirect ls /nonexistent errors to err.log using 2>.
CTF challenges
- 03 I/O & Pipelines: Catch Only Errors