Why finding files saves time in Linux CLI - Test Your Understanding

Practice - 5 Tasks

1fill in blank

easy

Complete the code to find all files named 'notes.txt' in the current directory and its subdirectories.

Linux CLI

find . -name [1]

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

A"notes.txt"

Bnotes.txt

C*.txt

D"notes"

Attempts:

3 left

💡 Hint

Common Mistakes

Not using quotes causes the shell to expand the pattern incorrectly.

Using a wildcard like '*.txt' finds all text files, not just 'notes.txt'.

The find command requires the filename pattern in quotes to correctly match the exact file name 'notes.txt'.

2fill in blank

medium

Complete the code to find all files with '.log' extension modified in the last 7 days.

Linux CLI

find /var/log -name [1] -mtime [2]

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

A"*.log"

B-7

C7

D"log"

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting '*.log' causes shell to expand before find runs.

Using 'log' instead of '*.log' matches only files named exactly 'log'.

Using '7' instead of '-7' finds files modified exactly 7 days ago.

The -name option needs the pattern '*.log' in quotes to find all log files. The -mtime -7 selects files modified within the last 7 days (newer than 7 days old).

3fill in blank

hard

Fix the error in the command to find all files larger than 1MB in /home directory.

Linux CLI

find /home -size [1]

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

A1M

B+1M

C-1M

D1MB

Attempts:

3 left

💡 Hint

Common Mistakes

Using '1M' finds files exactly 1MB, not larger.

Using '1MB' is invalid syntax for find.

The '+1M' means files larger than 1 Megabyte. Without '+', it looks for files exactly 1M.

4fill in blank

hard

Fill both blanks to find all files owned by user 'alice' and print their names.

Linux CLI

find /home -user [1] -exec [2] {} \;

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

Aalice

Bls

Cecho

Dcat

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'ls' with -exec prints detailed info, not just names.

Using 'cat' tries to display file contents, which may be large or binary.

The -user option needs the username 'alice'. The -exec with 'echo' prints the file names.

5fill in blank

hard

Fill all three blanks to create a dictionary of filenames and their sizes for files larger than 100KB.

Linux CLI

sizes = { [1]: [2] for [3] in $(find . -type f -size +100k) }

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

Afile

Bos.path.getsize(file)

Dfilename

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong variable names causes errors.

Not using os.path.getsize() returns wrong values.

Use 'file' as the loop variable, get size with os.path.getsize(file), and use 'file' as the key.