xargs for building commands from input in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to use xargs to list details of files passed from echo.

Linux CLI

echo file1.txt file2.txt | xargs [1]

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

Als -l

Bcat

Crm

Dmkdir

Attempts:

3 left

💡 Hint

Common Mistakes

Using cat instead of ls -l will show file contents, not details.

Using rm will delete files, which is not intended here.

The ls -l command lists detailed information about files. Using xargs with ls -l runs ls -l on each file passed from echo.

2fill in blank

medium

Complete the code to delete files listed in files.txt using xargs.

Linux CLI

cat files.txt | xargs [1]

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

Arm

Bls

Cmkdir

Dtouch

Attempts:

3 left

💡 Hint

Common Mistakes

Using ls will only list files, not delete them.

Using mkdir or touch will create directories or files, not delete.

The rm command deletes files. Using xargs rm deletes all files listed in files.txt.

3fill in blank

hard

Fix the error in the code to correctly count lines in files listed by find using xargs.

Linux CLI

find . -name '*.txt' | xargs [1]

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

Als -l

Bwc -l

Ccat

Drm

Attempts:

3 left

💡 Hint

Common Mistakes

Using ls -l lists file details but does not count lines.

Using cat outputs file contents but does not count lines.

The wc -l command counts lines in files. Using xargs wc -l counts lines in all .txt files found.

4fill in blank

hard

Fill both blanks to create a command that finds all .log files and compresses them using gzip.

Linux CLI

find /var/log -name '*.log' | xargs [1] [2]

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

Agzip

B-v

C-9

Dls

Attempts:

3 left

💡 Hint

Common Mistakes

Using ls does not compress files.

Using -9 is a compression level but not required here.

The gzip command compresses files. The -v option shows verbose output. Using xargs gzip -v compresses all found .log files with visible progress.

5fill in blank

hard

Fill all three blanks to create a command that finds all .txt files, counts words in each, and shows only those with more than 100 words.

Linux CLI

find . -name '*.txt' | xargs [1] | awk '[2] [3] 100'

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

Awc -w

B$1

C>

Dls

Attempts:

3 left

💡 Hint

Common Mistakes

Using ls does not count words.

Using wrong comparison operators like < will filter incorrectly.

The wc -w command counts words. The awk command filters lines where the first field (word count) is greater than 100. This combination lists files with more than 100 words.