Run nano lab/checklist.txt.
nano lab/checklist.txt
Mission 67
Nano checklist
Create a checklist and search it for a completion marker.
Nano and editingnanogrepcat
Lesson 67 of 360
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Nano and editing · 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 grep reviewed lab/checklist.txt.
grep reviewed lab/checklist.txt
Run cat lab/checklist.txt.
cat lab/checklist.txt
Save progress
Keep learning across sessions.
Create a free account to sync completed lessons, XP, streaks, course status, and your next lesson across sessions.
Checking account status...
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New learnerrank
0day streak
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Noverified
Progress sync stores completion IDs, scores, streaks, badges, and game settings. Terminal contents, editor snippets, lab scratch, email, and real names are never published on leaderboards or share cards.
Lesson support
What to notice while you play.
Write and verify a checklist.
Save a line containing reviewed.
Checklists protect against skipped steps.
- Keeping checklist state only in memory.
- Searching before saving.
Reference
Commands in this lesson.
nano <file>
Open a simulated nano editor.
cat <file>
Print text file contents.
grep [-i] <text> <file>
Find literal text inside a file.