performance
medium
Apply
redir
2 points
Question 16. CSCD240-E1-B
Send BOTH stdout and stderr of build.sh to build.log.
Work the drill
Answer on paper or in a terminal before revealing the ideal answer.
Ideal answer
build.sh > build.log 2>&1
Acceptable alternatives: ["build.sh &> build.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.
build.sh 2>&1 > build.log
Misconception. Evaluation order wrong: stderr to terminal, stdout to file.
Remedy. Teach left-to-right: put 2>&1 AFTER the > filename.
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: Merge stdout+stderr to one file with 2>&1.