Copying, moving, and deleting files in Intro to Computing - Practice Problems & Coding Challenges

Challenge - 5 Problems

🧠 Conceptual

intermediate

Understanding file operations: Copy vs Move

Imagine you have a file named report.txt in your Documents folder. You want to organize your files by putting report.txt into a folder named Work.

Which of the following best describes the difference between copying and moving this file?

A Copying renames the file in Documents; moving creates a shortcut in Work without changing the original.

B Copying deletes the original file and creates a new one in Work; moving duplicates the file in both folders.

C Copying duplicates the file into the Work folder and keeps the original in Documents; moving transfers the file to Work and removes it from Documents.

D Copying compresses the file before placing it in Work; moving encrypts the file in Documents.

💡 Hint

Think about whether the original file stays where it is after the operation.

Copying creates a duplicate file in the new location while keeping the original file unchanged. Moving transfers the file to the new location and removes it from the original place.

❓ trace

intermediate

Trace the result of deleting a file

Consider this sequence of actions on a computer:

1. Create a file named data.csv in the Downloads folder.
2. Move data.csv to the Desktop.
3. Delete data.csv from the Desktop.

What is the state of data.csv after these steps?

A <code>data.csv</code> no longer exists on the computer.

B <code>data.csv</code> exists only on the Desktop.

C <code>data.csv</code> exists only in Downloads.

D <code>data.csv</code> exists in both Downloads and Desktop.

💡 Hint

Remember what happens to a file when you delete it from its current location.

Moving the file transfers it from Downloads to Desktop, so it no longer exists in Downloads. Deleting it from Desktop removes it completely from the computer.

❓ Comparison

advanced

Comparing file operation commands

Below are four command-line instructions for copying a file named notes.txt from the folder Projects to Archives. Which command correctly copies the file without deleting the original?

A copy Projects/notes.txt Archives/ && rm Projects/notes.txt

B cp Projects/notes.txt Archives/

C rm Projects/notes.txt && cp Projects/notes.txt Archives/

D mv Projects/notes.txt Archives/

💡 Hint

Recall which command is used to copy files and which is used to move or delete.

cp copies the file keeping the original intact. mv moves (copies then deletes original). rm deletes files. Commands combining rm and cp may fail if the file is deleted before copying.

❓ identification

advanced

Identify the error in file deletion command

Which of the following commands will cause an error when trying to delete a file named summary.docx?

A Remove-Item summary.docx

B rm summary.docx

C del summary.docx

D delete summary.docx

💡 Hint

Consider common commands used in Windows, Linux, and PowerShell.

delete is not a valid command in common shells. del works in Windows CMD, rm in Linux/Unix shells, and Remove-Item in PowerShell.

🚀 Application

expert

Predict the final file locations after multiple operations

Given the following sequence of file operations:

1. Copy image.png from Pictures to Backup.
2. Move image.png from Pictures to Work.
3. Delete image.png from Backup.

Where does image.png exist after these steps?

A Only in the Work folder.

B In both Work and Backup folders.

C Only in the Backup folder.

D No longer exists anywhere.

💡 Hint

Trace each step carefully and consider what happens to the file in each folder.

Step 1 copies the file to Backup (original remains in Pictures). Step 2 moves the original from Pictures to Work (so Pictures no longer has it). Step 3 deletes the copy in Backup. Final location is only Work.

Practice

1. Which of the following best describes what happens when you copy a file on your computer?

easy

A. The file is renamed but stays in the same location.

B. The file is moved to a new location and removed from the original place.

C. The file is permanently removed from the computer.

D. A new file is created in the new location, and the original file stays where it is.

Solution

1. Step 1: Understand copying

   Copying means making a duplicate file without deleting the original.

2. Step 2: Compare with other actions

   Moving removes the original, deleting removes permanently, renaming changes the name only.

3. Final Answer:

   A new file is created in the new location, and the original file stays where it is. -> Option D

4. Quick Check:

   Copying duplicates file = A [OK]

Hint: Copying duplicates, original stays [OK]

Common Mistakes:

• Confusing copying with moving
• Thinking deleting is copying
• Believing renaming moves the file

2. Which command correctly moves a file named report.txt from the folder Documents to Archives in a command-line interface?

easy

A. move Documents/report.txt Archives/

B. copy Documents/report.txt Archives/

C. delete Documents/report.txt Archives/

D. rename Documents/report.txt Archives/

Solution

1. Step 1: Identify the move command

   The command to move files is usually move (Windows) or mv (Unix).

2. Step 2: Check other commands

   copy duplicates, delete removes, rename changes name only.

3. Final Answer:

   move Documents/report.txt Archives/ -> Option A

4. Quick Check:

   Move command = move [OK]

Hint: Move command is 'move' or 'mv' [OK]

Common Mistakes:

• Using copy instead of move
• Using delete to move files
• Confusing rename with move

3. Consider this Python code snippet using the shutil module:

import shutil
shutil.copy('data.txt', 'backup/data.txt')
shutil.move('data.txt', 'archive/data.txt')

What will happen after running this code?

medium

A. 'data.txt' is deleted from both 'backup' and 'archive'.

B. 'data.txt' is moved to 'backup', then copied to 'archive'.

C. A copy of 'data.txt' is made in 'backup', then the original is moved to 'archive'.

D. An error occurs because you cannot copy and move the same file.

Solution

1. Step 1: Understand shutil.copy()

   This creates a duplicate of 'data.txt' in 'backup' folder; original remains.

2. Step 2: Understand shutil.move()

   This moves the original 'data.txt' from current location to 'archive', removing it from original place.

3. Final Answer:

   A copy of 'data.txt' is made in 'backup', then the original is moved to 'archive'. -> Option C

4. Quick Check:

   Copy then move = C [OK]

Hint: Copy duplicates, move transfers original [OK]

Common Mistakes:

• Thinking move duplicates file
• Assuming copy deletes original
• Believing both files are deleted

4. You wrote this command to delete a file:
del myfolder\file.txt
But you get an error saying the file is not found. What is the most likely cause?

medium

A. The file path is incorrect or the file does not exist.

B. The del command cannot delete files.

C. You need to copy the file before deleting it.

D. The file is already deleted, so the command fails.

Solution

1. Step 1: Check file path and existence

   If the file path is wrong or file missing, deletion fails with 'not found' error.

2. Step 2: Understand del command

   del deletes files; it works if file exists and path is correct.

3. Final Answer:

   The file path is incorrect or the file does not exist. -> Option A

4. Quick Check:

   File not found = wrong path or missing file [OK]

Hint: Check file path and existence first [OK]

Common Mistakes:

• Assuming del cannot delete files
• Trying to copy before deleting unnecessarily
• Ignoring file path correctness

5. You want to organize your photos by moving all files from Downloads to Pictures, but keep a backup copy in Backup. Which sequence of actions correctly achieves this?

hard

A. Move all files from Downloads to Pictures, then copy all files from Downloads to Backup.

B. Copy all files from Downloads to Backup, then move all files from Downloads to Pictures.

C. Delete all files from Downloads, then copy files from Backup to Pictures.

D. Copy all files from Pictures to Downloads, then move files from Backup to Pictures.

Solution

1. Step 1: Copy files to Backup

   Copying duplicates files to Backup folder, preserving originals in Downloads.

2. Step 2: Move files to Pictures

   Moving transfers files from Downloads to Pictures, removing them from Downloads.

3. Final Answer:

   Copy all files from Downloads to Backup, then move all files from Downloads to Pictures. -> Option B

4. Quick Check:

   Copy backup first, then move original = B [OK]

Hint: Copy first to backup, then move originals [OK]

Common Mistakes:

• Moving before copying loses original files
• Deleting files before backup
• Copying from wrong folders