Run printf deploy-start | tee lab/deploy-output.txt.
printf deploy-start | tee lab/deploy-output.txt
Mission 142
Script-style output
Use printf to create predictable script output.
Shell scriptingprintftee
Lesson 142 of 360
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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.
Run cat lab/deploy-output.txt.
cat lab/deploy-output.txt
Run wc -l lab/deploy-output.txt.
wc -l lab/deploy-output.txt
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Lesson support
What to notice while you play.
Use printf to create predictable script output.
Run the commands in order and compare the outputs.
Junior operators build confidence by gathering evidence before changing systems.
- Skipping the inspection step.
- Assuming one command tells the whole story.
Reference
Commands in this lesson.
printf <text>
Print formatted training text.
tee <file>
Write piped text to a lab file and keep it on screen.