Run awk '{print $1}' /var/log/auth.log.
awk '{print $1}' /var/log/auth.log
Mission 108
Structured file fields
Compare awk and cut views of structured text.
Files and pathsawkcut
Lesson 108 of 360
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Files and paths · 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 cut -d : -f 1 /etc/group.
cut -d : -f 1 /etc/group
Run wc -l /etc/group.
wc -l /etc/group
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Lesson support
What to notice while you play.
Compare awk and cut views of structured text.
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.
awk '{print $N}' <file>
Print a whitespace-delimited field.
cut -d <char> -f <n>
Extract delimited fields from text.