Mission 258

Script log capture

Capture script-style output into a log file.

Shell scripting
8 minutes Admin Lesson 258 of 360
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Lesson 258 of 360 0/360 lessons 0/17 missions Shell scripting · 8 minutes
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learner@clairos:/home/learner $ Unix ops lab: type a command, press Enter
Instructions 8 minutes

Click any instruction for the command details, the why, and the common mistake to avoid.

Capture deploy marker

Run printf deploy-check | tee lab/deploy.log.

printf deploy-check | tee lab/deploy.log
Read deploy log

Run cat lab/deploy.log.

cat lab/deploy.log
Count deploy log

Run wc -l lab/deploy.log.

wc -l lab/deploy.log
Lesson support

What to notice while you play.

Objective

Capture script-style output into a log file.

Hint

Run the commands in order and compare the outputs.

Why it matters

Junior operators build confidence by gathering evidence before changing systems.

Common mistakes
  • Skipping the inspection step.
  • Assuming one command tells the whole story.
Reference

Commands in this lesson.

printf <text>

Print formatted training text.

cat <file>

Print text file contents.

tee <file>

Write piped text to a lab file and keep it on screen.