[Solved] You want to run a script that outputs system info and save it to sysinfo.log while still seeing it live on screen. You also want to keep adding to the log without erasing old data.... | Linux CLI

Linux CLI - Pipes and Redirection

You want to run a script that outputs system info and save it to sysinfo.log while still seeing it live on screen. You also want to keep adding to the log without erasing old data. Which command achieves this?

Auname -a | tee sysinfo.log

Buname -a | tee -a sysinfo.log

Ctee -a sysinfo.log | uname -a

Duname -a > tee -a sysinfo.log

Step-by-Step Solution

Solution:

Step 1: Understand the requirement to append and show output
The command must show output on screen and append to the file without overwriting.
Step 2: Identify correct tee usage
uname -a | tee -a sysinfo.log uses tee -a sysinfo.log with pipe from uname -a, which appends and shows output live.
Step 3: Eliminate incorrect options
uname -a | tee sysinfo.log overwrites file. Options C and D misuse command order and redirection.
Final Answer:
uname -a | tee -a sysinfo.log -> Option B
Quick Check:
Pipe output to tee -a to append and show = A [OK]

Quick Trick: Use pipe and tee -a to append and display output live [OK]

Common Mistakes:

Forgetting -a causes overwrite
Placing tee before command
Using > redirection incorrectly with tee

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Which command achieves this?

Step 1: Understand the requirement to append and show output

Step 2: Identify correct tee usage

Step 3: Eliminate incorrect options

Final Answer:

Quick Check:

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