nano text editor in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to open a file named notes.txt in nano editor.

Linux CLI

nano [1]

Drag options to blanks, or click blank then click option'

Anotes.txt

Bedit.txt

Cfile.txt

Ddocument.txt

Attempts:

3 left

💡 Hint

Common Mistakes

Typing the wrong file name.

Forgetting to specify the file name.

The command nano notes.txt opens the file named notes.txt in the nano text editor.

2fill in blank

medium

Complete the command to save changes in nano using the keyboard shortcut.

Linux CLI

Press [1] then [2] to save the file in nano.

Drag options to blanks, or click blank then click option'

ACtrl

BAlt

CO

DS

Attempts:

3 left

💡 Hint

Common Mistakes

Pressing Ctrl + S instead of Ctrl + O.

Using Alt instead of Ctrl.

In nano, pressing Ctrl then O saves the current file.

3fill in blank

hard

Fix the error in the command to exit nano without saving changes.

Linux CLI

Press [1] then [2] to exit nano without saving.

Drag options to blanks, or click blank then click option'

ACtrl

BAlt

CX

DQ

Attempts:

3 left

💡 Hint

Common Mistakes

Pressing Ctrl + Q instead of Ctrl + X.

Using Alt instead of Ctrl.

To exit nano, press Ctrl then X. If there are unsaved changes, nano will ask to save or discard.

4fill in blank

hard

Fill both blanks to search for the word error inside nano.

Linux CLI

Press [1] then [2] and type 'error' to search in nano.

Drag options to blanks, or click blank then click option'

ACtrl

BAlt

CW

DF

Attempts:

3 left

💡 Hint

Common Mistakes

Using Ctrl + F instead of Ctrl + W.

Using Alt key instead of Ctrl.

In nano, pressing Ctrl + W opens the search prompt to find text.

5fill in blank

hard

Fill all three blanks to replace the word old with new inside nano.

Linux CLI

Press [1] then [2] to start replace, type 'old', press Enter, type [3], then Enter.

Drag options to blanks, or click blank then click option'

ACtrl

BR

Cnew

DW

Attempts:

3 left

💡 Hint

Common Mistakes

Using Ctrl + W instead of Ctrl + \.

Forgetting to type the new word.

In nano, Ctrl + \ starts replace. Then type the old word, press Enter, type the new word (here 'new'), and press Enter to replace.

Practice

1. What is the primary purpose of the nano text editor in Linux?

easy

A. To manage system processes

B. To compile programs

C. To quickly edit text files in the terminal

D. To browse the internet

Solution

1. Step 1: Understand nano's role

   Nano is a simple text editor used in the terminal for editing files.

2. Step 2: Compare options

   Only To quickly edit text files in the terminal describes editing text files, which matches nano's purpose.

3. Final Answer:

   To quickly edit text files in the terminal -> Option C

4. Quick Check:

   nano edits text files = C [OK]

Hint: Remember nano is a text editor, not a compiler or browser [OK]

Common Mistakes:

• Confusing nano with compilers or system tools
• Thinking nano manages processes
• Assuming nano is a web browser

2. Which keyboard shortcut saves the current file in nano?

easy

A. Ctrl+X

B. Ctrl+C

C. Ctrl+S

D. Ctrl+O

Solution

1. Step 1: Recall nano save command

   In nano, Ctrl+O writes (saves) the file to disk.

2. Step 2: Identify other shortcuts

   Ctrl+X exits, Ctrl+S is not standard in nano, Ctrl+C cancels commands.

3. Final Answer:

   Ctrl+O -> Option D

4. Quick Check:

   Save file = Ctrl+O [OK]

Hint: Save with Ctrl+O, exit with Ctrl+X [OK]

Common Mistakes:

• Using Ctrl+X to save instead of exit
• Assuming Ctrl+S saves in nano
• Confusing Ctrl+C with save

3. What happens when you run nano myfile.txt if myfile.txt does not exist?

medium

A. nano creates a new empty file named myfile.txt for editing

B. nano shows an error and exits

C. nano opens a random file

D. nano opens the last edited file

Solution

1. Step 1: Understand nano file behavior

   If the file does not exist, nano creates a new empty buffer with that filename.

2. Step 2: Check other options

   It does not error out, open random or last file.

3. Final Answer:

   nano creates a new empty file named myfile.txt for editing -> Option A

4. Quick Check:

   Nonexistent file opens empty new file = A [OK]

Hint: nano creates new file if it doesn't exist [OK]

Common Mistakes:

• Expecting an error if file is missing
• Thinking nano opens a random file
• Assuming nano opens last file automatically

4. You opened a file with nano but accidentally pressed Ctrl+X. What should you do to avoid losing changes?

medium

A. Press N to discard changes

B. Press Y to save changes before exit

C. Press Ctrl+C to cancel exit

D. Close the terminal immediately

Solution

1. Step 1: Understand nano exit prompt

   Pressing Ctrl+X asks if you want to save changes: Y or N.

2. Step 2: Choose correct option to save

   Press Y to save changes before exiting, preventing data loss.

3. Final Answer:

   Press Y to save changes before exit -> Option B

4. Quick Check:

   Save changes on exit = Y [OK]

Hint: Press Y to save changes when exiting nano [OK]

Common Mistakes:

• Pressing N and losing changes
• Trying Ctrl+C which cancels but not saves
• Closing terminal without saving

5. You want to edit a configuration file quickly on a remote server using nano. Which sequence correctly opens the file, saves changes, and exits?

hard

A. nano config.txt -> Ctrl+O -> Ctrl+X

B. nano config.txt -> Ctrl+X -> N

C. nano config.txt -> Ctrl+S -> Ctrl+Q

D. nano config.txt -> Ctrl+W -> Ctrl+C

Solution

1. Step 1: Open file with nano

   Use nano config.txt to open the file for editing.

2. Step 2: Save changes with Ctrl+O

   Press Ctrl+O to write changes to the file.

3. Step 3: Exit nano with Ctrl+X

   Press Ctrl+X to exit the editor safely.

4. Final Answer:

   nano config.txt -> Ctrl+O -> Ctrl+X -> Option A

5. Quick Check:

   Open, save, exit = Ctrl+O then Ctrl+X [OK]

Hint: Save with Ctrl+O, then exit with Ctrl+X [OK]

Common Mistakes:

• Using Ctrl+X then N discards changes
• Using Ctrl+S or Ctrl+Q which are not nano shortcuts
• Using Ctrl+W (search) or Ctrl+C (cancel) incorrectly