Run cat data/users-a.txt.
cat data/users-a.txt
Mission 314
Sorted inventory comparison
Compare two sorted account inventories without modifying either file.
Files and pathscommcat
Lesson 314 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 cat data/users-b.txt.
cat data/users-b.txt
Run comm data/users-a.txt data/users-b.txt.
comm data/users-a.txt data/users-b.txt
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Lesson support
What to notice while you play.
Build repeatable confidence with comparing sorted inventories with comm.
Start with cat data/users-a.txt, inspect the result, then continue in order.
Comparing sorted inventories with comm helps operators explain what they know before they change anything.
- Skipping the output that proves comparing sorted inventories with comm.
- Changing several things before recording a baseline.
Reference
Commands in this lesson.
cat <file>
Print text file contents.
comm <left> <right>
Compare two sorted text files line by line.