Run cut -d : -f 1 /etc/passwd | tee lab/users.txt.
cut -d : -f 1 /etc/passwd | tee lab/users.txt
Lesson 148 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/users.txt.
cat lab/users.txt
Run wc -l lab/users.txt.
wc -l lab/users.txt
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Lesson support
What to notice while you play.
Extract account fields for script-style checks.
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.
cut -d <char> -f <n>
Extract delimited fields from text.
tee <file>
Write piped text to a lab file and keep it on screen.