rm (remove files) in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to remove a file named example.txt.

Linux CLI

rm [1]

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

A-r

B-f

C--help

Dexample.txt

Attempts:

3 left

💡 Hint

Common Mistakes

Using options like -r or -f without a filename.

Typing the filename incorrectly.

The rm command followed by the filename example.txt deletes that file.

2fill in blank

medium

Complete the code to force remove a file named data.log without any prompt.

Linux CLI

rm [1] data.log

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

A-f

B-r

C-i

D--help

Attempts:

3 left

💡 Hint

Common Mistakes

Using -i which asks for confirmation.

Using -r which is for directories.

The -f option forces removal without asking for confirmation.

3fill in blank

hard

Fix the error in the command to remove a directory named backup and all its contents.

Linux CLI

rm [1] backup

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

A-i

B-r

C-f

D--help

Attempts:

3 left

💡 Hint

Common Mistakes

Using -f alone does not remove directories.

Forgetting the recursive option causes an error.

The -r option tells rm to remove directories and their contents recursively.

4fill in blank

hard

Fill both blanks to remove all files with .tmp extension in the current directory without prompt.

Linux CLI

rm [1] [2]

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

A-f

B-r

C*.tmp

D-i

Attempts:

3 left

💡 Hint

Common Mistakes

Using -r which is for directories, not files.

Using -i which asks for confirmation.

Use -f to force removal and *.tmp to select all files ending with .tmp.

5fill in blank

hard

Fill all three blanks to remove a directory named logs and all its contents forcefully and quietly.

Linux CLI

rm [1] [2] [3] logs

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

A-r

B-f

C-q

D-i

Attempts:

3 left

💡 Hint

Common Mistakes

Using -i which asks for confirmation.

Forgetting -r for directories.

Use -r for recursive removal, -f to force deletion, and -q to suppress output.

Practice

1. What does the rm command do in Linux?

easy

A. Deletes files or folders permanently

B. Copies files to another location

C. Lists files in a directory

D. Creates a new directory

Solution

1. Step 1: Understand the purpose of rm

   The rm command is used to remove files or directories permanently from the system.

2. Step 2: Compare with other commands

   Other commands like cp copy files, ls lists files, and mkdir creates directories, so they do not delete files.

3. Final Answer:

   Deletes files or folders permanently -> Option A

4. Quick Check:

   rm = delete files [OK]

Hint: Remember: rm means remove files permanently [OK]

Common Mistakes:

• Confusing rm with cp or mv
• Thinking rm moves files instead of deleting
• Assuming rm lists files

2. Which of the following is the correct syntax to remove a file named example.txt?

easy

A. rm -i example.txt example2.txt

B. rm -r example.txt

C. rm example.txt

D. rm -f

Solution

1. Step 1: Identify basic rm syntax

   The basic command to remove a single file is rm filename. Here, rm example.txt removes the file named example.txt.

2. Step 2: Understand option usage

   -r is for directories, -i asks for confirmation, and -f forces removal but needs a filename. rm example.txt is simplest and correct for a single file.

3. Final Answer:

   rm example.txt -> Option C

4. Quick Check:

   Basic rm syntax = rm filename [OK]

Hint: Use rm filename to delete one file simply [OK]

Common Mistakes:

• Using -r for files instead of directories
• Forgetting to specify filename
• Using -f without filename

3. What will happen if you run the command rm -i file1.txt file2.txt?

medium

A. Deletes both files without asking

B. Asks for confirmation before deleting each file

C. Deletes only file1.txt and ignores file2.txt

D. Shows an error because -i cannot be used with multiple files

Solution

1. Step 1: Understand the -i option

   The -i option makes rm ask for confirmation before deleting each file.

2. Step 2: Apply to multiple files

   When multiple files are listed, rm -i will ask for confirmation separately for each file before deleting.

3. Final Answer:

   Asks for confirmation before deleting each file -> Option B

4. Quick Check:

   -i means interactive confirmation [OK]

Hint: Use -i to confirm each file deletion [OK]

Common Mistakes:

• Thinking -i deletes without asking
• Believing -i works only for one file
• Assuming -i causes error with multiple files

4. You try to delete a directory named myfolder using rm myfolder but get an error. What is the correct fix?

medium

A. Use rm -r myfolder to remove the directory and its contents

B. Use rm -f myfolder to force delete the directory

C. Use rm -i myfolder to confirm deletion

D. Rename the directory before deleting

Solution

1. Step 1: Understand why error occurs

   By default, rm cannot delete directories without the -r (recursive) option.

2. Step 2: Use recursive option to delete directory

   Using rm -r myfolder deletes the directory and all files inside it.

3. Final Answer:

   Use rm -r myfolder to remove the directory and its contents -> Option A

4. Quick Check:

   Delete directory = rm -r [OK]

Hint: Use -r to delete folders recursively [OK]

Common Mistakes:

• Trying rm without -r on directories
• Using -f alone does not delete directories
• Thinking -i fixes directory deletion

5. You want to safely delete all files with extension .log in your current folder, but want to confirm each deletion. Which command should you use?

hard

A. rm -f *.log

B. rm -r *.log

C. rm *.log

D. rm -i *.log

Solution

1. Step 1: Identify the need for confirmation

   You want to confirm each file deletion, so the -i option is needed.

2. Step 2: Use wildcard for all .log files

   The pattern *.log matches all files ending with .log in the current folder.

3. Step 3: Combine options correctly

   Using rm -i *.log will ask for confirmation before deleting each .log file.

4. Final Answer:

   rm -i *.log -> Option D

5. Quick Check:

   Confirm each deletion = rm -i [OK]

Hint: Add -i to confirm each file deletion with wildcard [OK]

Common Mistakes:

• Using rm without -i deletes without confirmation
• Using -r unnecessarily for files
• Using -f forces deletion without asking