Run cp data/config-a.conf lab/learn-copy.conf.
cp data/config-a.conf lab/learn-copy.conf
Mission 328
Nano config-copy edit
Edit a disposable config copy and compare it with the original.
Nano and editingcpnanodiff
Lesson 328 of 360
0/360 lessons
0/17 missions
Nano and editing · 8 minutes
New learnerrank
0XP
0%complete
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 nano lab/learn-copy.conf. Replace listen 443 ssl; with listen 8443 ssl; and save with Ctrl+O.
nano lab/learn-copy.conf
Run grep 8443 lab/learn-copy.conf.
grep 8443 lab/learn-copy.conf
Run diff data/config-a.conf lab/learn-copy.conf.
diff data/config-a.conf lab/learn-copy.conf
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...
Progress sync is idle.
0XP
New learnerrank
0day streak
0best streak
0daily streak
0lessons
0courses
0missions
0tasks
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.
Build repeatable confidence with editing a copy instead of a live configuration.
Copy first, change only 443 to 8443 in nano, save with Ctrl+O, then compare.
Editing a copy instead of a live configuration helps operators explain what they know before they change anything.
- Skipping the output that proves editing a copy instead of a live configuration.
- Changing several things before recording a baseline.
Reference
Commands in this lesson.
nano <file>
Open a simulated nano editor.
diff <left> <right>
Compare two lab text files.
cp <src> <dst>
Copy a file.