Run printf operator | tr a-z A-Z.
printf operator | tr a-z A-Z
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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 printf OPERATOR | tr A-Z a-z.
printf OPERATOR | tr A-Z a-z
Run printf denied | tr d D.
printf denied | tr d D
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Lesson support
What to notice while you play.
Transform piped text with tr.
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.
tr a-z A-Z
Transform piped text case.